David Letterman Crashes Jimmy Fallon's Monologue, Says He Used to Do a Show Like This... Minus the 'Chuck E. Cheese Crap'

Late-night TV legend David Letterman returned to his former stomping grounds at 30 Rockefeller Plaza Monday for a surprise appearance on The Tonight Show Starring Jimmy Fallon. His cameo doubled as a reunion with former bandleader Paul Shaffer, who's filling in this week while Fallon’s house band The Roots is in rehearsals for Saturday Night […]