(Cover) - EN Showbiz - Foo Fighters new album is more primal than their previous work as they recorded it in Dave Grohls garage.

The American rock group began laying down their seventh studio album last year, but at the moment it is untitled. It sees singer Dave Grohl reunite with legendary producer Butch Vig, who he collaborated with on Nirvana's 1991 iconic album Nevermind back when Dave was drummer for the now defunct band.

Butch has revealed the group were concerned about creating something new and harsher sounding this time round, so opted not to record in their usual studio. Dave recently showed cameras around his garage, where the band decided to work, and Butch has spoken about why that decision was made.

He mentioned to me, when they played Wembley [Stadium in the UK] at the end of last tour, they were like, 'Holy sh*t, I can't believe how big we are.' And he was thinking what to do next, and so he said, 'I want to do something really primal sounding.' And had me up to his house, and when I got there this was nine months ago he opened up his garage door and went, 'I want to record the record in here.' And I said, 'Uh, OK...' he laughed.

Butch is proud of the project, and says it will stay with him for a long time. Nirvana bassist Krist Novoselic also appears on the LP, and being in the same room as the two men really impacted Butch. He is sure of the tracks laid down is in part about Kurt Cobain, who was the lead singer in Nirvana and killed himself in 1994.

We had Krist Novoselic come in and play bass [on the song], and I'm not exactly sure what the song's about, but to me, it seems there's definitely some references about Kurt Cobain, and it's one of the most primal, raw things the Foo Fighters have ever done, and I think it's one of the best tracks on the record," he told MTV News. "It's distorted and raw... We played the record for some people yesterday, and the whole record is great, but that song, God, it's quite an emotional roller-coaster ride when you hear it." (C) Cover Media