Billy Crystal Returns for Lip Flip

To help promote the paperback edition of Billy Crystal s Still Foolin Em, Jimmy and Billy swap mouths and tell a joke in Dutch. Subscribe NOW to The Tonight Show Starring Jimmy Fallon: Watch The Tonight Show Starring Jimmy Fallon Weeknights 11:35, 10:35c Get more Jimmy Fallon: Follow Jimmy: Like Jimmy: Get more The Tonight Show Starring Jimmy Fallon: Follow The Tonight Show: Twi