Guitarist Dave Grohl, left, and bassist Nate Mendel of the Foo Fighters perform during rehearsals for the MTV Movie Awards 2011 at the Gibson Amphitheatre, June 3, 2011 in Universal City, Calif. The Movie Awards air live on MTV on Sunday, June 5. (AP Photo/PictureGroup, Scott Gries)
June 4, 2011 5:15:55 PM PDT
UNIVERSAL CITY, Calif. (AP) - June 4, 2011 --
The Foo Fighters mixed things up during their rehearsal for the MTV Movie Awards, spontaneously breaking into various classic rock songs as they rehearsed the track they'll play on Sunday's show.