The next Foo Fighters album is "almost halfway done" according to its producer Butch Vig.

Vig, who first worked with Dave Grohl when he produced Nirvana's 'Nevermind' in 1991, is co-producing the record with Steve Albini (who recorded Nirvana's 'In Utero' in 1993) and the says that the band are toying with a range of various different recording techniques in order to find their best sound. Vig likened the approach to that of Foo Fighters' 2011 record 'Wasting Light', an album which was recorded in frontman Dave Grohl's garage.

In an interview with Kerrang magazine, Vig said: "We've been recording at some different locations but we're almost halfway done with the recording and it's going well. It sounds different - we've thrown a few things into the mix, in the recording process, that are going to five the record a different sound and a different feel. It's been a challenge, but it's also been exciting."

Dave Grohl has previously told BBC Radio that the record is going to "sound nuts", adding that the "entire concept is really going to take people by surprise."