David Letterman Surprises Jimmy Fallon as Paul Shaffer Takes Over ‘The Tonight Show’
David Letterman made a surprise cameo on The Tonight Show Starring Jimmy Fallon on Feb. 10, interrupting Fallon’s monologue to welcome his longtime musical director Paul Shaffer and The World’s Most ...
Watch: David Letterman crashes Jimmy Fallon's 'Tonight Show' monologue
Feb. 11 (UPI) -- David Letterman joined Jimmy Fallon during his monologue on The Tonight Show Monday. "Is this the 23rd hour of the Today show?" asked the former Late Show host, feigning confusion, ...