Beatles legend Ringo Starr also expresses his grief on Twitter.
"God bless Charlie Watts, we will miss you."
Singer Lenny Kravitz calls Charlie Watts "the beat of the Stones".
"There are no words".
"Rest in peace Charlie Watts, one of the greatest rock drummers ever and a real gentleman," writes Bryan Adams.
Actor Debi Mazar thanks Charlie Watts for "a lifetime of great music" and expresses his condolences to his friends and family.
Guitarist and singer Tom Morello emphasizes how important Watts has been to rock music. Rock n roll would not have been rock n roll but the rhythm, the style, the vibe from this fantastic musician. Rest in peace Charlie Watts, one of the greatest and most important architects of the music we love ”.