“I’m telling you man; you don’t want to incur the wrath of Taylor Swift”: Dave Grohl lights the blue touchpaper on Foo's "Errors Tour"

Dave Grohl and Taylor Swift composite image.

Intentionally or not, Dave Grohl has just stirred a hornet’s nest.

There he was headlining the London Stadium on Saturday night on the Foo Fighters latest UK tour and he makes one little joke about Taylor Swift, who that same evening is playing Wembley Stadium just up the road.