Yo-Yo Ma -- Composed When Dissed

1/19/2009 5:00 PM PST BY TMZ STAFF
Cellist Yo-Yo Ma was a child prodigy who performed for JFK when he was seven -- and has since won 15 Grammy Awards, was named Peace Ambassador by the UN and has even appeared on an episode of "The Simpsons..."

...and our photog actually had the nerve to ask if he got his Inauguration gig by winning "a drawing."

It's pretty hilarious -- and Yo-Yo Ma is the nicest guy ever.