The shine has hardly faded from the Foo Fighters' two Grammy Awards, but the group is already working towards a follow-up to last year's "Echoes, Silence, Patience & Grace."

"We're already working on songs," bassist Nate Mendel tells Billboard.com. "We've got a handful of them that we're working on at sound check, which has never really happened, so we're getting a good start. The band's in a good place; everyone's really excited about making music, so we're already getting going."

That said, Mendel isn't sure how quickly a new Foos album will come, especially with a year full of touring ahead of the band.

"Well, we're gonna need a break," he says. "It's fun making the music; it's when you have to go out and promote it that it's work. So we're gonna be in a weird place -- we were on this last record, too. It's like, 'We just got done touring, but we're ready to record. What do we do?' You can't record it and leave it in a vault 'cause it'll get leaked, and it feels weird to just sit and wait arbitrarily for six months. We'll probably find ourselves in the same position again, excited to record but knowing that you've got a year of touring at the end of it."

Mendel and company aren't wringing their hands too much, however. Currently in the midst of a North American tour, the group also has spring dates booked in Japan, Australia and New Zealand before heading to Europe in late May.

"The one thing we're really focused on are the shows at Wembley Stadium (June 6-7)," he says. "They're the biggest thing we've ever done, so we're basically working up to that. We're trying to improve the show so we can pull it off playing in a stadium 'cause it's another level for us and a lot of pressure. We want it to be huge and the best thing we've ever done."

But don't look for a run of stadiums back home, Mendel adds. "If we were opening for Bon Jovi, maybe -- which isn't going to happen. We're just happy to be playing in arenas right now."