Photo credit: Ash Newell

Def Leppard guitarist Phil Collen says the band are working on new material while they’re out on the road with Journey.

Earlier this month, Def Leppard released Volume 1 – the first of four career-spanning box sets. The first collection brings together 1980’s On Through The Night, 1981’s High ’N’ Dry,1983’s Pyromania and 1987’s Hysteria.

Def Leppard are currently on tour across North America with Journey and will return to the UK and Ireland for a run of UK and Ireland dates in December, which will see the band revisit the Hysteria album.