Bowie & Queen like you've never heard it before...

Foo Fighters unexpectedly gained two new members over the weekend, after the group invited a mum and daughter to perform.

As they performed at Vancouver’s Rogers Arena on Saturday night, the rock titans were joined by ardent fan Maddy Duncan and her mum.

The pair belted out Queen and David Bowie‘s ‘Under Pressure’, after the band noticed that Maddy was holding a sign that requested a duet.

Footage posted on YouTube shows drummer Taylor Hawkins joining Maddy on the track, while her mum occasionally takes over on vocals.

“You wanna sing Under Pressure? The girl in the Queen shirt!”, Hawkins remarks as he invites her on stage.

The show marked the first show that Foo Fighters played since returning from a self-induced medical break.

The break came after Dave Grohl suffered a throat infection that required him to take vocal rest.

“After opening this leg of the tour September 1 at Safeco Field in Seattle, Dave Grohl suffered a loss of voice and is now on vocal rest,” said the band in a statement, before Grohl himself added: “That’s the last time I ever make out with Bono.”

In August, the Foos tour saw Grohl and guitarist Pat Smear reunite with their former Nirvana bandmate Pat Smear to perform a cover of The Vaselines’ ‘Molly’s Lips‘ on stage – famously one of Kurt Cobain’s songs, and recorded by the band for their b-sides and outtakes album ‘Incesticide’.