Paul McCartney played a massive show at London’s O2 Arena last night where he was joined by a very special surprise guest. Nirvana/Foo Fighters’ Dave Grohl joined on stage to help out on guitar and vocals on the Beatles classic “I Saw Her Standing There.”

Paul McCartney Crashed His Stepson’s Graduation Band

Attendees were also treated to the live debut of his “Temporary Secretary” off of McCartney II. Watch fan-shot footage of both highlights below courtesy of YouTuber fromoutofnowhereis.

Check out McCartney’s upcoming US tour dates here.

[Via Rolling Stone]