Here, we remember Williams' 10 best musical moments as a tribute to the iconic actor.
"I Yam What I Yam" from 'Popeye' (1980)
As Popeye "the Sailor Man," Williams brings the comic strip character to life in the 1980 film and gives his most famous catch phrase its own musical number.
Robin Williams, Craig Ferguson Dance to "Hit Me Baby One More Time" (2010)
The actor joins The Late Late Show host Craig Ferguson at a San Francisco performance for a synchronized dance to Britney Spears' smash "Hit Me Baby One More Time."
Robin Williams, Wayne Brady Duet on 'Whose Line is it Anyway?" (2000)
Williams and Brady team up for a spiritual duet dedicated to an air traffic controller.
Ivan "Bob" Poppanoff the "Russian Idol" on 'American Idol' (2008)
Williams shows the American Idol audience how its done in Russia.
"We Are Family" Sequence from 'The Birdcage' (1996)
Williams and his all star castmate give this classic film a fun ending dancing along to the the iconic Sister Sledge track.
Fun With Dinosaurs From 'Mrs. Doubtfire' (1993)
Williams delivers a handful of music impressions and a rap, all adapted to a lesson about dinosaurs. It may not all be historically "accurate," but it's entertaining.
"My Way (A Mi Manera)" From 'Happy Feet' (2006)
As an adélie penguin Ramón, Williams belts the Frank Sinatra classic in Spanish for all Antarctica to hear.
Music Video for "Don't Worry Be Happy" by Bobby McFerrin (1988)
Along with McFerrin and actor and clown Bill Irwin, Williams shines in this feel-good clip.
"Blame Canada" at the Academy Awards (2000)
Williams appeared at the 2000 Academy Awards as a surprise performer singing "Blame Canada" from South Park: Bigger, Longer, and Uncut.
"Friend Like Me" from 'Aladdin' (1992)
Williams' memorable performance from the Disney classic is summed up in the catchy "Friend Like Me."