Foo Fighters frontman Dave Grohl strapped on his guitar and joined Paul McCartney on stage in London this weekend to perform The Beatles' classic 'I Saw Her Standing There.'

McCartney was performing at the O2 Arena in London when he invited Grohl on stage to join him.

This wasn't the first time the duo has shared the stage, though. Back in 2009, Grohl was behind the drum kit during a performance of 'I Saw Her Standing There' on The Grammys, according to Rolling Stone.

McCartney also joined Grohl, along with former Nirvana bassist Krist Novoselic and guitarist Pat Smear, on track 'Cut Me Some Slack,' from the Sound City soundtrack.

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