Sum 41 has posted a new studio update on what to expect from their next album. The band is currently in the studio demoing for their follow up to 2007's Underclass Hero.

Frontman Derek Whibley promises that it's already different from anything they've released in the past and which the singer describes as "pretty fuckin' heavy." He notes:

There's so many different moods and sounds and so many different instruments on this record, It's the most exciting thing we've ever done.