Billy Crystal: Mark Twain Winner

Comedian and actor Billy Crystal, center, gestures to quiet down a cheering audience from the balcony of The Kennedy Center in Washington, D.C., on Thursday, Oct. 11, 2007. Crystal was at the event with his wife, Janice, right, to receive the 10th annual Mark Twain Prize for American Humor.

Comedian and actor Billy Crystal with his wife, Janice, poses for photographs at The Kennedy Center in Washington, D.C., on Thursday, Oct. 11, 2007. Crystal was at the event to receive the 10th annual Mark Twain Prize for American Humor. Previous winners have included Carl Reiner, Steve Martin and Whoopi Goldberg.

Comedian and actor Billy Crystal, bottom left, greets a cheering audience from the balcony of The Kennedy Center in Washington, D.C., on Thursday, Oct. 11, 2007. In accepting the 10th annual Mark Twain Prize for American Humor, Crystal asked the audience whether it meant he had to retire.

Actor Robin Williams pauses for photographs while entering The Kennedy Center to attend the 10th annual Mark Twain Prize for American Humor, being awarded to Billy Crystal on Thursday, Oct. 11, 2007, in Washington, D.C. He was among those paying tribute to Crystal. Others included actor Robert DeNiro and New York Yankees manager Joe Torre.

Actor Rob Reiner pauses for photographs while entering The Kennedy Center in Washington to attend the tenth annual Mark Twain Prize for American Humor, being awarded to Billy Crystal on Thursday, Oct. 11, 2007. Reiner directed Crystal in "When Harry Met Sally."

Actor John Lovitz pauses for photographs while entering The Kennedy Center to attend the 10th annual Mark Twain Prize for American Humor, being awarded to Billy Crystal on Thursday Oct. 11, 2007, in Washington, D.C. Crystal, like Lovitz, was known for creating characters on "Saturday Night Live."

Actor Danny DeVito pauses for photographs while entering The Kennedy Center in Washington to attend the tenth annual Mark Twain Prize for American Humor, being awarded to Billy Crystal on Thursday, Oct. 11, 2007. The ceremony will be broadcast in November on PBS.

Actor Martin Short arrives at the 10th Annual Mark Twain Prize Awards on Oct. 11, 2007, in Washington, D.C.

Jimmy Fallon arrives at the 10th annual Mark Twain Prize for American Humor, being awarded to Billy Crystal on Thursday, Oct. 11, 2007, in Washington, D.C. Crystal, like Fallon, was known for creating characters on "Saturday Night Live."