If you happened to catch Foo Fighters' Glastonbury set on Saturday night on TV - or maybe you were lucky enough to see it in person - you'll be aware that Dave Grohl and his bandmates put on a rock performance worthy of the biggest music festival in the world.

During the set, Grohl also made reference to Adele's previous headline slot at the festival, and how she apparently held the record for the most swearing during a Glastonbury performance.

"We were doing an interview and someone said, 'You know you're not supposed to swear – there's no swearing on Glastonbury'," he told the crowd. "I was like, 'What the f**k is that supposed to f**king mean?' And then, I guess Adele holds the record for the most 'f**ks' in a Glastonbury set. Now, I love Adele, but guess what...?"

He then did what any self-respecting rock star ought to, and proceeded to break the Londoner's record of 33 swear words.

Job done...