Even after announcing the Foo Fighters are going on hiatus, frontman Dave Grohl won't be short on projects anytime soon. The former Nirvana drummer will get behind the kit to record the upcoming Queens of the Stone Age album, and claims the band is the toughest group in rock.

As reported by SPIN, Grohl was being interviewed by BBC Radio 1's Zane Lowe last week when he shared his admiration for Josh Homme and company. "When you walk into a festival backstage with Queens of the Stone Age, it's like, the record stops," says Grohl. "People stop and they stare, and it's like, Queens of the Stone Age are, without question, the baddest rock'n'roll band in the world."

That's some kind of praise for a man who helped usher in the grunge revolution with Nirvana in the '90s. Grohl continued to gush about his Them Crooked Vultures bandmate, reflecting fondly on playing drums for their 2002 breakthrough, Songs for the Deaf. The musician talked about how there were no limits during the recording session.

"There were no boundaries with that band, there were no limits with them," Grohl said of the decade-old album. "It was like, if you did something insane, do it more. And honestly, the new Queens of the Stone Age record, I'm playing drums on that, and I'll do something so completely ridiculous, I'll just, like, 'There's no way that Josh is going to let me do that,' and he'll say, 'Do that for 45 seconds, over and over again, that's become, like, the part of the song, now that is a big part of the song,' and that's the way they work."

Queens of the Stone Age's as-yet-untitled sixth album is scheduled to be released some time in 2013. Homme confirmed that the record would be available before their performance at the Download Festival in June.

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