Roger Daltrey and Pete Townshend have played The Who's iconic rock rebellion anthem "Won't Get Fooled Again" in just about every arena and stadium in the world.
But it's safe to say that they've never played it on a plastic toy ukulele and child's tambourine before!
The Rock and Roll Hall of Fame icons crammed into the Tonight Show classroom on Wednesday night (May 15) to rip through a spirited version of the song with house band The Roots and host Jimmy Fallon, who contributed some wood block and enthusiastic backing vocals.