Grammy Awards 2012

10 Most Outrageous Grammy Performances

Gwyneth & Cee Lo! Elton & Eminem! Relive the musical mashups that had you talking long after the show

2. RADIOHEAD & THE USC MARCHING BAND (2009)

In what world would the English alt-rock band that gave us the angst-ridden album OK Computer join forces with the Spirit of Troy (aka, the USC Marching Band), whose rah-rah signature song is "Fight On!"? Why the world of the 2009 Grammys, of course!