More about: Foo FightersDave Grohl

Dave Grohl is a man full of surprises. Be it a low-key gig to announce their Glastonbury headliner, dropping new and unreleased songs from their forthcoming album, Concrete And Gold, into their current live set list or announcing a return to the UK, you’ve come to expect the unexpected. Which is why no one figured that Boyz II Men’s Shawn Stockman is guesting on the title track of the new album.

Yes, you read that right: Shawn Stockman of R&B male vocal harmony group Boyz II Men. But how did such a thing come to pass? Was it all planned? What else does Dave Grohl have up his sleeve? A collaboration with New Kids On The Block?

Grohl revealed all when he was asked by the BBC what the weirdest moment was of making Concrete And Gold, the follow-up to 2014’s Sonic Highways.

“The guy from Boyz II Men walking through the parking lot and me saying ‘Oh, dude, would you sing on our record?’

“And he does – on the heaviest song on the entire record. It sounds like Sabbath and Pink Floyd. It’s the last song on the record with the guy from Boyz II Men – his name is Shawn. He built a choir. It’s like 40 vocals stacked. It’s insane.”

And why not? Whoever imagined that Foo Fighters would have secured the production services of Greg Kurstin, the man probably best known for working with pop titans such as Pink, Ellie Goulding and Kelly Clarkson among many others.

Speaking of the new album last month, he said in a statement: "I wanted it to be the biggest sounding Foo Fighters record ever. To make a gigantic rock record but with [producer] Greg Kurstin's sense of melody and arrangement... Motorhead's version of Sgt. Pepper... or something like that.”

He added that Concrete And Gold will feature “some of the most insanely heavy Foo Fighters riffs ever with lush harmonic complexities.”

More about: Foo FightersDave Grohl