Yo-Yo Ma (b. 1955) is perhaps the world's most famous cellist.
He appeared on Sesame Street in the 1980s. In one sketch, Elmo sees Ma's cello and thinks it's a "big fiddle" that belongs to Mr. Snuffleupagus, in contrast to Elmo's "little fiddle" (a violin). When Bob and Yo-Yo Ma straighten things out, he and Elmo play music together. (EKA: Episode 2505)
In December 2011, Elmo appeared at the Kennedy Center Honors to help honor Ma.