Robin Williams and Billy Crystal team up to honor Whoopi Goldberg when she was awarded the 2001 Mark Twain Prize.

Robin Williams honors his close friend, comedian Billy Crystal, at the 2007 Mark Twain Prize ceremony.

Amy Poehler honors Carol Burnett at the 2013 Mark Twain Prize

The stars came out to honor Carol Burnett at the 2013 Mark Twain Prize

Stars discuss working with Carol Burnett and the joy of the Carol Burnett Show

Join Tina Fey, Martin Short, Amy Poehler, Vicki Lawrence, Julie Andrews and many others in celebrating the life and career of Carol Burnett during the 2013 Mark Twain Prize.

Tina Fey honors Carol Burnett at the 2013 Mark Twain Prize

Meet Tim Conway and hear what he has to say about Carol Burnett

Performers of the 2013 Mark Twain Prize share their funniest moments with Carol Burnett.

Martin Short gives a toast to Carol Burnett at the 2013 Mark Twain Prize

Carol Burnett accepts the 2013 Mark Twain Prize

Jason Mraz performs a song for Ellen DeGeneres during the 2012 Mark Twain Prize.

Loudon Wainwright III performs his song "Mark Twain" at the 2012 Mark Twain Prize.

Celebrate the work of Ellen DeGeneres, the 15th recipient of The Kennedy Center Mark Twain Prize for American Humor.6/4/2013

Enjoy the acceptance speech from Ellen Degeneres at the 2012 Mark Twain Prize for American Humor.

John Kransinski and Jimmy Kimmel honor Ellen Degeneres at the 2012 Mark Twain Prize for American Humor.