The world woke up Monday morning to the sad news of David Bowie's death from cancer at the age of 69.

As the word spread, artists, leaders, assorted admirers and even a cardinal from the Vatican paid tribute to the groundbreaking musician known for his otherworldly, androgynous appearance. His career spanned five decades and included acting performances in the movies The Man Who Fell to Earth, Labyrinth and Basquiat. Here is what some of the celebrities had to say about him on Twitter:

British Prime Minister David Cameron: "I grew up listening to and watching the pop genius David Bowie. He was a master of re-invention, who kept getting it right. A huge loss."

Cardinal Gianfranco Ravasi, the president of the Pontifical Council for Culture: "Ground Control to Major Tom Commencing countdown, engines on Check ignition and may God's love be with you (David Bowie.)"

Madonna: "Im Devastated! This great Artist changed my life! First concert i ever saw in Detroit! R.I.P."

So lucky to have met you!!!! Hot Tramp I love you So! ♥ #rebelheart" Madonna (@Madonna) January 11, 2016


Antonio Banderas: "Good bye Starman, RIP David Bowie."

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Kanye West: "David Bowie was one of my most important inspirations, so fearless, so creative, he gave us magic for a lifetime."

Russell Crowe: "RIP David. I loved your music. I loved you. One of the greatest performance artists to have ever lived. #sorrow."

Linda Perry: "Oh this is terrible news. We lost an extremely important and influential artist. David Bowie has been a huge inspiration and will be missed."

Diane Warren: "Oh my God not David Bowie."

Ricky Gervais: "I just lost a hero. RIP David Bowie."

Foo Fighters: "Rest in peace, David."

Pharrell Williams: "David Bowie was a true innovator, a true creative. May he rest in peace."

Eddie Izzard: "Very sad to hear about the death of David Bowie but through his music he will live forever."

Paul Feig: "Absolutely devastated by the death of Bowie. Cannot process this. At this point, the world makes no sense. RIP David. You were a genius."

Elijah Wood: "Never imagined a world without him. He has ascended into the cosmos from whence he came. Farewell, David Bowie."

Frances Bean Cobain: "R.I.P. David Bowie. You were an icon, you changed the idea of what a man should be, your musical genius will live on."

Weird Al Yankovic: "I feel like the wind has been knocked out of me - I was not ready for this. RIP Bowie."

Meanwhile, fans took to Twitter and Facebook, sharing a year-old gif of illustrations by artist Helen Green depicting the many looks of the fashion icon.