The Foo Fighters frontman was reportedly jumping around on stage when he fell off. Grohl shouted, "I think I just broke my leg!"
Pharrell Williams, Elton John, Stevie Wonder, One Direction and dozens more sing the Beach Boys.
The stars have definitely caught baby fever!
Daft Punk's Random Access Memories won Album of the Year, while the Robot Duo's Get Lucky featuring Pharrell Williams and Nile Rodgers nabbed Record of the Year and Best Pop Duo/Group Performance.
