Scores of celebrities took to social media to pay their respects to Muhammad Ali, who died at age 74.
The three-time world heavyweight champion heavyweight boxing champion, one of the most famous pop culture icons of his time, passed away Friday, a day after he was admitted to a hospital in Phoenix to treat a respiratory ailment.
He had for more than 30 years battled Parkinson's disease, which impaired his speech, but had occasionally stepped out at public events.
Ali, who was born Cassius Clay, won the Light Heavyweight gold medal at the 1960 Summer Olympics in Rome and earned the title of World Heavyweight Champion three times in the '60s and '70s. He retired from boxing in 1981, three years before his Parkinson's diagnosis.
Here's what celebrities said about Ali:
Oscar De La Hoya:
Arsenio Hall, who, along with co-star Eddie Murphy, paid tribute to Ali and poked fun at his name change in a memorable barbershop scene in their 1988 movie Coming to America:
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LL Cool J:
Muhammad Ali, we are all stronger because of the light you shared with us. Rest in peace G.O.A.T. I love you. pic.twitter.com/frRsld7iLE— LLCOOLJ. (@llcoolj) June 4, 2016
"Impossible is a word thrown around by small men who find it easier to live in a world they've been given than to explore the power they have to change it. Impossible is not a fact. It's an opinion. Impossible is potential. Impossible is temporary. Impossible is nothing." Muhammad Ali. You were the greatest. Thanks for giving me strength and a love of self when I couldn't muster it. Rest. The angels are singing.
Michael J. Fox, who also has Parkinson's disease:
"Muhammad was a true legend—a champion in the boxing ring, and a champion for millions of Parkinson's families," he said in a statement posted on his website of the Michael J. Fox Foundation for Parkinson's Research. "We looked up to him as an example of grace and courage in the face of great challenges. He will be missed."