Late Show with David Letterman S21 E68 James Franco, Idina Menzel, a performance by the Broadway cast of 'If/Then'

David Letterman uses mature humor to appeal to his audience in this weeknight series, which gets its music from a house band led by Paul Shaffer. Among the show's most-famous segments are the Top Ten List and Stupid Pet Tricks, the latter of which subsequently led to an additional recurring segment called Stupid Human Tricks.