Foo Fighters fans at English festival V were treated to a special guest on Sunday (19Aug07) - the band were joined on stage by frontman Dave Grohl's mother. The rocker's hard-men image was dented when Grohl surprised the crowd at the Stafford, England gig by inviting his mother onstage halfway through the set. He told the crowd, "A lot of people here tonight are important to me. But there is one person that is more important than any of you motherf**kers. Virginia Hammond Grohl everybody." Virginia then joined her son as he played Up In Arms.