Dave Grohl Joins Rolling Stones Onstage in California [Video]Dave Grohl Joins Rolling Stones Onstage in California [Video]Dave Grohl joined the Rolling Stones onstage last night (May 19) in Anaheim, Calif., strapping on his guitar and performing 'Bitch' -- from 'Sticky Fingers' -- with the boys!Amy SciarrettoAmy Sciarretto