Dave Grohl says the next Foo Fighters album will surprise a lot of people.

Speaking to BBC Radio 1, Grohl said that the stuff they've already done is quite different from anything they've recorded in the past.

Grohl says, "I know what it sounds like and I honestly think the entire concept is really going to take people by surprise and it sounds nuts.  We recorded something the other day that's unlike anything we've ever done and it starts with a fuse and then it explodes."

The frontman expects to announce their plans soon.

There have been rumors that the Foo Fighters are recording songs at multiple studios across the country.