Def Leppard may have spent time celebrating their past with the 'Viva Hysteria' Las Vegas residency earlier this year, but make no mistake, there is new music on their collective minds.

Guitarists Phil Collen and Vivian Campbell spoke with Billboard about what's on the horizon for the band and the subject of new music came up. Collen explained that the group is walking the fine line between respecting their past and mining new territory. He explained, "You paint yourself into a corner with a certain writing style when you have a huge album." But for the next disc, the guitarists suggested that recording material live like they did for the underrated 'Slang' album may be the path they take.

"'Slang' is very raw -- us playing live -- and everyone hated it. But you learn from that. You don't want to cop out too much," says Collen. Campbell added, "I think sometimes you just got to let it happen. The other side of the equation is the band is successful for a certain sound. It's a brand like Coca-Cola and you've got to give the people what they expect. At the same time, you have to move on." At present there is no timeline for their next record, but the group is reportedly preparing new material in Dublin.

Meanwhile, Def Leppard's 'Viva Hysteria' residency has got the band thinking they'd like to do it again. Collen revealed that a 'Viva Pyromania' residency is in the works for late 2014, with the band returning to Las Vegas to celebrate their hugely successful 1983 album.