Fall Out Boy has "an album's worth of material" ready, according to frontman Patrick Stump. But don't expect to see the group's fifth album any time soon.

"There's always something that hits me, like a sense of urgency -- NOW is the time for an album -- and we're not there yet," Stump tells Billboard.com. "I just get this kind of wanderlust of some kind to go back into a studio. It's always a very defined point."

And, Stump says, he still thinks there's life left in Fall Out Boy's platinum "Infinity on High," which isn't even nine months old and recently spawned a new single, "I'm Like a Lawyer With the Way I'm Always Trying to get You Off (Me + You)."

"I don't really feel like we're done with this one yet," Stump notes. "I feel like it's still in its cycle. There's a lot of songs on it I'm really proud of. I don't think we have one really monster hit on this record like "Sugar," but there are a lot of really strong individual songs. If a song is effective enough it'll work as a single, and I think we have a lot of effective songs that aren't necessarily monsters."

Meanwhile, Stump says the new Fall Out Boy material takes the group in "some very different directions. There's lots of really bizarre ideas on there, everything from folk to ... actually, I was experimenting with piano phases, like Steve Reich, the composer. There'll be some weird stuff, but at the end of the day, it's probably just gonna be a pop record."

Fall Out Boy has just started its Young Wild Things tour with Cute Is What We Aim For, Plain White T's and Gym Class Heroes. Stump, who recently produced the new Cobra Starship album, is helming Gym Class Heroes' next release -- along with two other projects.

He also recently filmed a guest spot on "Law & Order" which will air in February. "I've been begging forever, 'cause I'm just a fan," he says. "Somehow they let me do it."