Jack Black to perform for Ferrell
Jack Black, Conan O'Brien and Larry King are among the stars set to perform in honour of Will Ferrell in Washington DC.
Ferrell will be presented with the Mark Twain Prize for American Humour during a ceremony at the Kennedy Centre in Washington.
Bridesmaids actress Maya Rudolph and Molly Shannon, who know Ferrell from his Saturday Night Live days, will also be performing.
Ferrell's longtime collaborator Adam McKay from the films Anchorman, Talladega Nights and The Other Guys will appear, as well as Lorne Michaels, Paul Rudd, John C. Reilly and Green Day.
Ferrell starred for seven seasons on SNL, perfect He went on to create FunnyorDie.com and took his Bush character to Broadway.