The Best of Jack Black on The Tonight Show

Jack Black gives a taste of his Sax-A-Boom skills, sings in a shot-for-shot remake of Extreme’s "More Than Words" music video with Jimmy and more!The Tonight

Jack Black of Tenacious D during an interview with host Jay Leno on News Photo - Getty Images

Jack Black sings School of Rock song to young fan with rare disease

The Tonight Show, History, Hosts, & Facts

Conan O'Brien's Farewell to Late Night: The 6 Best Moments With Will Ferrell, Jack Black and Homer Simpson?

Watch The Tonight Show Starring Jimmy Fallon Streaming Online

Watch The Tonight Show Starring Jimmy Fallon Streaming Online

Jack Black and Jimmy Fallon Recreate Extreme's 'More Than Words' Shot-for-Shot (Video)

Rachel Brosnahan, Jack Harlow Appear On The Tonight Show Starring Jimmy Fallon (Early Look)

Billie Eilish Is 'Almost Done' With Her Next Album: Watch – Billboard

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