Paul McCartney surprised fans at his London gig on Saturday night when he introduced Dave Grohl to duet with him on Beatles' classic I Saw Her Standing There.

They first performed the song together at the 2009 Grammy Awards with Grohl playing drums. The pair also collaborated on the Grammy Award-winning track, Cut Me Some Slack for Grohl’s documentary, Sound City.

McCartney also performed Temporary Secretary from his album McCartney II, which was released 35 years ago. This was the first time The Beatle had ever performed the song, dubbed “one of 12 weirdest Paul McCartney songs” by Rolling Stone magazine.