Stars sign up for Ellen DeGeneres' Mark Twain show

Ellen is a pro at making people laugh, but soon the tables will be turned.

A lineup of top entertainers including Kristin Chenoweth, Steve Harvey, Sean Hayes, Jimmy Kimmel, John Krasinski, Jason Mraz and Lily Tomlin will salute DeGeneres at the 15th Annual Kennedy Center Mark Twain Prize for American Humor on Oct. 22.

The evening will pay tribute to the humor and accomplishments of the comedian and talk-show host, and will air as Ellen DeGeneres: The Kennedy Center Mark Twain Prize on Oct. 30 on PBS stations nationwide (check local listings).

Let's hope Ellen finds them funny!