Fashion hits and misses for April 2019

Spring is here and with that comes spring fashion! From pretty pastel hues to sweet sundresses, we've rounded up the best fashion moments of the month. But with the good comes the bad, so we'll start with a less-than-stellar fashion moment courtesy of Marion Cotillard. The actress delivered the worst look of the month in a truly bizarre Lacoste ensemble that she wore to a film premiere in Brussels, Belgium, on April 23. Marion's getup from the sporty label included what looked to be a turtleneck underneath a full-length dress dotted with the brand's signature crocodile logo underneath an oversized sleeveless V-neck sweater. Keep reading for a closer look at this messy look, plus more of the best and worst dressed stars of April 2019!

RELATED: Fashion hits and misses from the 2019 Billboard Latin Music Awards

If the turtleneck underneath the dress wasn't odd enough, this oversized collared and sleeveless sweater took things to an entirely new (and terrible) fashion level. Though it would have been cute on its own, the odd outerwear looked bizarre over top the dress — especially considering that it featured a deconstructed crocodile motif where the brand's logo typically resides as well as mismatched navy, green and red striping.

RELATED: Fashion hits and misses from the 2019 ACM Awards

Scarlett Johansson sparkled in this little Versace number on the "Avengers: Endgame" premiere red carpet on April 22. The metallic frock was comprised of Swarovski crystal mesh, giving it an extra glittery effect, and featured a thigh-high slit to bring a little more edge to the ensemble. Equally on-point? Those perfectly simple golden Jimmy Choo sandals. Now see this one from another angle…

RELATED: Fashion hits and misses for March 2019

The back of Scarlett Johansson's Versace design featured multiple cut-outs, resulting in a nearly open back held together with just a few vertical straps. Next up? Her subtle homage to the flick via her accessories…

Scarlett Johansson rocked some seriously cool jewelry on the "Avengers: Endgame" premiere red carpet — this Sonia Boyajian creation meant to be a nod to Thanos's Infinity Gauntlet. The unique jewelry piece featured 18k gold and tourmaline, aquamarine, amethyst and Mexican fire opal stones. Making this addition even sweeter? It was a gift given to Scarlett by boyfriend Colin Jost.

Brie Larson was a lilac dream in Celine at the "Avengers: Endgame" premiere in Los Angeles on April 22 in a silk frock with spaghetti straps, a halter-style neckline, ruched detailing at the waist and a thigh-high slit. She complemented the pretty pastel dress with metallic sandals by Christian Louboutin and some killer accessories, which we'll check out next…

Scarlett Johansson wasn't the only star inspired by the Infinity Gauntlet! Brie Larson also sported some seriously cool jewelry — rings by Irene Neuwirth that featured green and pink tourmaline, aquamarine and fire opal. She also added a cuff bracelet with citrine and diamonds.

We don't expect much from Madonna in the fashion department these days, but this?! The star wore what seemed to be a tiny bodysuit underneath a long black coat while out in London on April 24. Also included in this odd ensemble? Fishnet tights, sky-high heels and an eye patch complete with a red X over top.

We're in the midst of another Taylor Swift transformation — and this one seems to be all about pastels. The star wore this gorgeous J. Mendel number to the TIME 100 Gala in New York City on April 23 — a dress designed with a removable puffy-sleeved bolero fit for a princess. Let's take a closer look…

Taylor Swift's J. Mendel gown sure was a stunner. Up close, you can get a better look at the delicate pleating, floral detailing and velvet embellishments. She topped off this romantic, feminine ensemble with a subtle, sweet tiara and pink-hued makeup.

Where do we begin with the look that Suki Waterhouse wore to the Montblanc #Reconnect 2 The World party in Berlin on April 24? From the messy hair to the odd red sequined Altuzarra crop top-and-jacket combo to the casual jeans, we were left scratching our heads. The only part we liked were those hot pink heels.

We were obsessed with Gwyneth Paltrow's short suit on the "Avengers: Endgame" premiere purple carpet in Los Angeles on April 22. The striking blazer-and-shorts combo by her Goop brand's own G. Label was only elevated by the interesting blouse choice underneath, which added the fun detail of a pussy-bow collar, bringing a little feminine flair to this structured look. She completed things with super-simple strappy sandals for a clean all-black ensemble.

While attending the Revolve Party during Coachella on April 14, Kendall Jenner sported this puzzling ensemble. Though the pale blue House of Harlow dress itself was great, her accessories are where the reality star-turned-model went wrong. She added unnecessary printed white-and-green full-length gloves by Marine Serre and funky lime green boots by Zarqua, which transformed this look into a major miss.

Isabela Moner rocked a show-stopping silver look at the Billboard Latin Music Awards in Las Vegas on April 25. The young singer-actress donned a minidress from Raisa & Vanessa complete with beaded geometric shapes, a fringed bodice and a skirt full of studded stars, then added some killer matching shoes to the mix. See them next…

Isabela Moner sported our favorite shoes of the month — these silver star-studded sandals by Giuseppe Zanotti — which matched her dress perfectly. Next we'll take a look at her hair and makeup…

Isabela Moner's excellent 2019 Billboard Latin Music Awards ensemble was elevated even further with her killer cat eye, a glossy pink lip and that extra-long thin braid. She finished things off with tiny hoop earrings.

Though we're all about florals right now, we weren't into Hilary Duff's "Younger" premiere look in New York City on April 25. The exaggerated long bell sleeves and ruffled hemline on The Vampire's Wife minidress were a little too dramatic for our taste when paired with this all-over floral print.

We've got three words for Martha Hunt: too! many! feathers! Her strapless Jason Wu frock featured layers upon layers of pale pink feathers interspersed with black, making it feel more like a costume than couture when she hit the TIME 100 Gala red carpet in New York City on April 23.

Angela Bassett was a vision in hot pink at the premiere of "The Apollo" in New York City on April 24. The star donned a long-sleeved dress with a ruffled and asymmetrical hemline, finishing her look off with some bronze sandals and a black clutch, providing some contrast to the ultra-feminine frock.

Hailey Baldwin Bieber's Levi's Party outfit during Coachella on April 13 was all over the place. The star donned a vintage corset with a sheer jacket over top that featured feathered detailing at the sleeves' edges. On the bottom half? A pair of baggy jeans and bright red Vans, which all just left us scratching our heads.

Selena Gomez looked lovely in this simple yet stunning little black dress by Dior. The star wore the black A-line frock with a plunging neckline to the WE Day California event in Los Angeles on April 25. She finished off the look with a pair of pointed-toe black pumps.

Another Dior LBD that was a hit this month? The sweet minidress that Charlize Theron wore to the "Long Shot" film premiere in Paris on April 24. Her black number was anything but basic: It featured sheer half-length sleeves and studded-leather detailing along the bodice and a flowy, short skirt. Her black pointed-toe pumps completed the look perfectly.

Though this was probably perfectly appropriate Neon Carnival attire during Coachella on April 13, we weren't fans of Paris Hilton's getup. The star wore a neon green-and-black minidress underneath a tacky rainbow-striped fuzzy jacket. Making things even worse? The immature cat ear headband and those studded sunglasses (at night!).

Pretty in pink! Becky G rocked hot pink at the Billboard Latin Music Awards in Las Vegas on April 25 in this fun, feathered frock by NEDO. She paired the fluffy minidress with matching hot pink heels with bow details.

The Elie Saab gown that Lily Collins wore to the premiere of "Extremely Wicked, Shockingly Evil and Vile" in London on April 24 was definitely polarizing. On one hand, the heart motif and those dramatic sheer sleeves were sweet, and the unexpected pops of blue brought a little life to the otherwise all-black ensemble… but she lost us with the completely sheer skirt.

Sarah Michelle Gellar sported this sweet combo at the WE Day California event in Los Angeles on April 25 — a lacy white minidress from Rebecca Taylor underneath a light denim jacket, resulting in the perfect spring ensemble. Those brown sandals were the perfect complement to this low-key look.

We really wanted to love the Givenchy gown that Zoe Saldana wore to the "Avengers: Endgame" premiere in Los Angeles on April 22. Just look at that phenomenal color! But the eccentric dress had one too many odd details going on — from its single long sleeve to the peplum to the asymmetrical pleated skirt. All of those additions were overwhelming, resulting in this dress landing in the miss pile.

Gorgeous in green! Brie Larson debuted one of her most stunning looks to date at the TIME 100 Gala in New York City on April 23 — a pretty Prada number that featured an exaggerated sweetheart neckline, a pleated skirt and the best addition of all, pockets!

Shower-curtain couture? Ariadna Gutierrez sported this unfortunate frock at the Billboard Latin Music Awards in Las Vegas on April 25. The star's strapless dress started out OK with a corset-style bodice embellished with gold details, but the skirt was an entirely different story! All those embellishments made it look like the bathroom accessory instead of red carpet couture.

Cardi B's looks have been polarizing lately, and unfortunately, we're in the no camp when it comes to this one. The rapper wore this mint green feather-adorned Ralph & Russo disaster to the grand opening of KAOS day and nightclub in Las Vegas on April 6, adding an overly dramatic hat to make things a little more ridiculous.

An example of rocking pastels perfectly? Kacey Musgraves — who is quickly becoming one of our favorite stars to see on the red carpet — delivered a win with her ACM Awards look in Las Vegas on April 7. The talented country music beauty wore this show-stopping Christian Cowan suit in a dreamy color palette of pale pink, lilac and light blue. She opted to rock the look without a shirt, but aside from the colors, it was the detailing that won us over with this one…

Those sleeves! The subtle pleated detailing on the sleeves of Kacey Musgraves' suit added an extra something special. And her gorgeous loose waves were the perfect hairstyle to go with this feminine and fabulous look.

Our first "what were you thinking?!" this month goes to Shay Mitchell. The star wore this bizarre feather-adorned pink frock by Nedo at the Patrick Ta Beauty Launch Party in Los Angeles on April 4. Even without the gaudy feathers, the dramatic sleeves and sparkly embellishments would have been enough to land this look on the miss list — but everything combined made for a major fashion misstep.

Another feathered pink-hued mess? Kendall Jenner's mini by Ingie Paris that she wore to the Tiffany & Co. flagship store launch in Sydney on April 4. Considering how much she made to be there (she earned a reported $500,000 just to show up), we'd have hoped for a better outfit.

An example of pink that worked? Elle Fanning looked like hot pink perfection at the "Teen Spirit" premiere in Los Angeles on April 2. The star donned this show-stopping bright pink Rodarte frock with intricate straps and a floor-length skirt culminating in delicate lace. That matching hot pink headband finished off the look perfectly.

Lily Collins rocked this cool icy blue combo while attending the "Les Miserables" premiere in New York City on April 8. The billowy dress by Manning Cartell featured sheer sleeves and a plunging neckline, and she managed to find shoes by Christian Louboutin in the exact same hue.

We would have loved the white minidress that Olivia Munn wore to the Cannes Series Festival in France on April 8 if not for that awkward extra fabric hanging from the front. She almost salvaged the look with a dramatic dark lip and nude pumps, but ultimately, this ensemble landed among the misses.

Michelle Williams looked lovely in white Louis Vuitton at the premiere of "Fosse/Verdon" in New York City on April 8. We loved the unique V-shaped neckline and delicate silver embellishments on the collar and at the waist of her white pleated frock.

We adored the baby blue frock that Nicky Hilton Rothschild wore to the DVF Awards in New York City on April 11. From the frilly sleeves to the delicate tiered layers on the skirt to the fun pop of color with that bold orange bow detail at the waist, this dress scored an A+. Our only complaint? We wish she would have gone with a bolder shoe choice than those dull metallic sandals.

Gigi Hadid rarely makes a fashion misstep, but this odd blue number by Emilia Wickstead at Variety's Power of Women event in New York City on April 5 fell flat. While the one-piece wasn't a hit, those blue snakeskin pointy-toe pumps sure were!

Sandra Oh looked divine in this sleek white Giorgio Armani number at the "Killing Eve" premiere in Los Angeles on April 1. We loved this subtle suit comprised of a flowing jacket paired with wide-legged pants. She completed the look with nude Tamara Mellon sandals.

We loved Naomi Watts' cute combo at The Hollywood Reporter's annual Most Powerful People in Media event in New York City on April 11. From that sweet white ruffled blouse to those black high-waisted pants with a sleek white stripe down the side, she knocked it out of the park with this getup. Elevating this look even further? Adding a pop of color via those red pumps!

Ellie Goulding looked like an '80s bride in this unfortunate Adriana Degreas getup. The long-sleeved, big-shouldered white frock featured a plunging neckline and a thick belt detail and felt like an oddly formal (and bridal!) choice for the premiere of "Our Planet" in London on April 4.

A tea-length treat! The black Rosie Assoulin frock that Zoe Saldana wore to the "Missing Link" premiere in New York City on April 6 was stunning. From the corset-like bodice to the long sleeves and lovely pleated skirt to the way she paired it with strappy emerald green heels, there was nothing missing from this fab ensemble!

Nicole Kidman served up a serious miss at the ACM Awards in Las Vegas on April 7. The typically stylish star was on hand to support hubby Keith Urban in this Christopher Kane design. We weren't fans of those billowy black lace sleeves or the lacy bodice coupled with a sparkly skirt.

Leopard and red are always a daring risk, but Melissa McCarthy pulled it off at the WB photo line at CinemaCon in Las Vegas on April 2. We loved the high neck, the bow detail along the collar, the long sleeves and that fun pleated skirt. And those red heels just elevated the look even further.

That's a whole lot of purple snakeskin! Katy Perry truly committed to a pattern with this trench coat and wide-legged pant combo, and we loved the unexpected lilac shade. The white turtleneck and white accessories she threw in the mix kept this look from becoming too overwhelmingly snakeskin. Nicely done, Katy!

Half black leather corset, half red evening gown? Sorry, Jennifer Hudson, but this hideous Basil Soda design was an instant miss in our books. The star wore this disaster to the finale photocall of "The Voice UK" in London on April 4.

A red dress that worked this month? Katharine McPhee's frock at the Olivier Awards in London on April 7. From the off-the-shoulder neckline to the banded detailing down the bodice and the asymmetrical detailing at the hips, this Elie Saab number scored an A+. Her hair and makeup — loose waves and an equally vibrant red lip — complemented the look perfectly.

Though we're sad to see "Game of Thrones" end after this season, the fashion at the show's Season 8 premiere in New York City on April 3 certainly helped matters. Emilia Clarke donned this dreamy Valentino number in a muted gray-blue hue featuring layers of delicate tulle and ruffles in all the right places. It also featured a poetic message written across the bodice: "Leave your door open for me. I might sleepwalk into your arms."

Our pick for the worst dressed star at the ACM Awards in Las Vegas on April 7? That unfortunately goes to Carrie Underwood. The superstar wore this Nicolas Jebran dress with one full sleeve and two high slits that resulted in a weird flap of fabric down the front. Equally disappointing? Her hair and makeup, which we'll see better next…

Carrie Underwood's beauty look wasn't much better than her unfortunate dress. The star sported this dated bouffant half-up, half-down hairstyle paired with a mismatched smoky eye and a pink lip.

How sweet is this off-the-shoulder frock on Octavia Spencer? We loved the ruffled detail at the neckline and the leaf motif throughout the full skirt. Making things even better? Those strappy Tamara Mellon heels. Octavia wore the look at the Big Screen Achievement Awards at CinemaCon in Las Vegas on April 4.

During award season, Claire Foy really underwhelmed at red carpet events, but this look made amends! Her killer black jumpsuit — complete with a bow sash at the waist and fun feathered heels to match — looked perfect at the Clase de Cartier launch dinner in Paris on April 10.

The Ulla Johnson outfit that Katie Holmes wore during CinemaCon on April 2 left us scratching our heads. It appears to be a sheer silver top with a pink bra popping through underneath paired with a high-waisted maroon-and-silver skirt and finished off with… black-and-white heels?

Ginnifer Goodwin was ready for spring in this sweet little floral frock that she wore to the 2019 Young Literati Toast in Los Angeles on April 6. We loved the sleeve length, the high neck and those delicate tiers trimmed in lace, which combined delivered an ultra-feminine moment. The bronze heels just elevated the look even further.

Obsessed! Olivia Wilde was gorgeous in a sequined emerald green tuxedo by Elie Saab at the Big Screen Achievement Awards during CinemaCon in Las Vegas on April 4. She completed the look with black pumps.

Not wowing us this month? Halle Berry's dreary silver dress at the CinemaCon Big Screen Achievement Awards in Las Vegas on April 4. It was metallic overload when she added silver Stella Luna heels to an already very shiny Patbo frock.

Maisie Williams showed off a fun way to wear plaid while stopping by the "Lorraine" show in London on April 9. The "Game of Thrones" star donned this combo by Markus Lupfer that featured wide-legged plaid pants with a T-shirt emblazoned with a mouth motif fashioned from the same pattern. She added a choker and wore her pink hair wavy, giving an extra edge to this funky ensemble.

Though this trend is oh-so tempting, the pajamas vibe Lily Collins brought to the Deadline Contenders Emmy Event in Los Angeles on April 7 left us underwhelmed. Her striped Etro set — which featured a long-sleeved top with front pockets and matching pants — was cool… but paired with those feathered sandals, the ensemble just felt a little too pajama-party-ready for a red carpet.