David Cassidy passed away at the age of 67 on Nov. 21, 2017. His family released a heartfelt statement after his death, saying: "On behalf of the entire Cassidy family, it is with great sadness that we announce the passing of our father, our uncle, and our dear brother, David Cassidy. David died surrounded by those he loved, with joy in his heart and free from the pain that had gripped him for so long. Thank you for the abundance and support you have shown him these many years." It didn't take long for his loyal fans to take to Twitter to express their sorrow. Keep reading to see how Hollywood reacted …
"so sad to hear of the passing of david cassidy… he was always so kind to me – such a pleasure to have had him on my show… sending love and prayers to his family… R.I.P. friend"–Harry Connick Jr.
"So very sad to hear of David Cassidy passing away He was always so kind and sweet to me. Our shows were both on Friday nights and deep down I dreamt of being a Partridge. His memory and love will live on in my forever. Love you David. Prayers to his family"–Maureen McCormick
"My uncle David Cassidy has sadly passed away tonight… & in the process of mourning I can't help but thank God for the joy that he brought to countless millions of people! I don't think I'm alone in saying that we will all miss him. God Speed!"–Jack Cassidy
"Rest In Peace, David Cassidy" –Alyssa Milano
"#DavidCassidy and The Partridge Family were my childhood. He made a huge impact on my cultural universe. Sending love and respect to his family."–Ben Stiller
"You were so sweet to me and you left us too soon. To me and millions of us you were forever young. RIP."–Marlee Matlin
"I grew up in an era before even cable TV, when The Partridge Family was already in reruns. David Cassidy's Keith was one of my favorite TV characters. He was legit funny AND he could sing. The man entertained me during my childhood and even years later." –Kevin Smith
"Sad to learn David Cassidy has died. Like his father Jack he had great talent, and a complicated life. Condolences to his wonderful family."–Larry King
"Heartbroken over the passing of #DavidCassidy. He graced the covers of teen magazines w/ my Brothers in the '70s. My condolences to his Family. #RIP #PartridgeFamily #DavidsHitSong #70sIcon #IWokeUpInLoveThisMorning" –Marie Osmond
"No! Too young. Oh man. So sad. Mind flooding with childhood memories. Had such a huge crush on #DavidCassidy Watched every episode of #ThePartridgeFamily . My condolences to his family, friends & fellow fans."–Rosie Perez
"My heart is hurting. You were an amazing tv daddy! Proud and honored to have worked with one of the best. Love and Prayers"–Alexa PenaVega
"RIP David Cassidy Who my age did not want to look like, sound like, just be him when they were young? I was lucky to get to know the sweet & very funny real David as an adult & I still wanted to be him."–Tom Arnold
"I'm very sad to hear about David Cassidy. There were times in the mid-1970s when he would come over to my house and we even started writing a song together. He was a very talented and nice person. Love & Mercy to David and his family." –Brian Wilson
"RIP #DavidCassidy my preteen heart is" –Lori Loughlin
"So sad he was such a sweet man. Rip"–Lisa Rinna
"So sorry to hear about David Cassidy's passing. Godspeed." –Rick Springfield
"REST IN PARADISE MR CASSIDY! U will not be 4gotten! U made us HAPPY! My favorite Patridge Family handsome guy! #RIP #DavidCassidy" –Vivica A. Fox
"One of my first TV crushes… #DavidCassidy has passed away. It's terribly sad. My love goes out to his family…especially his brother Ryan, my friend. Love you." –Carnie Wilson
"Bye bye childhood RIP David Cassidy"–Diane Warren
"My first crush was David Cassidy. #RIPDavidCassidy, the man who made me feel a certain way I could not explain, and felt I shouldn't ask my mom about. #PartridgeFamily #ThinkILoveYou"–Lizz Winstead