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Tom Morello, Flea, and Ozzy Osbourne are among the many rock stars mourning the loss of Robin Williams. 

[Get The Story: Robin Williams Dead of Apparent Suicide]

The Oscar-winning actor and comedian died Monday of an apparent suicide at the age of 63.  Osbourne called it a "tragic loss," and says he will "always have amazing memories" of Williams. 

[PHOTOS: Remembering Robin Williams]

Morello sent out an "RIP" tweet as well, and thanked his "fellow Illinois Entertainer-In-Arms" for bringing joy to so many with his "peerless wit." 

Flea also tweeted about the "beautiful gifts" Williams gave the world, as did former My Chemical Romance frontman Gerard Way. 

Other rockers who chimed in with their thoughts on Williams' life and death included Corey Taylor, Nikki Sixx, Nathan Followill, Dave Navarro, and many more.

PHOTOS: Remembering Robin Williams

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