Cast of "Super Mario Bros" Movie Sings the Video Game Theme Music

“The Super Mario Bros. Movie” Cast Performs A Cappella Version Of The Game’s Theme: Somehow, Jimmy Fallon got the cast of “The Super Mario Bros. Movie” to perform the theme for the iconic game. There are no words…. so Jimmy and The Roots as well as Chris Pratt, Jack Black, Seth Rogen, Anya Taylor-Joy, Fred Armisen, Keegan-Michael Key and Charlie Day all did an a cappella version of the game theme. It was done in honor of MAR10 Day.