Def Leppard continues to be active on multiple fronts, performing live during their Las Vegas residency and touring with Extreme, while guitarist Phil Collen reflects on the band's best show yet and expresses interest in playing at the Sphere despite concerns about production overshadowing the music. Meanwhile, guitarist Vivian Campbell is recording new material with Sweet Savage, the band he co-founded, and the band's members are featured in new projects, including a forthcoming album by The Gaslight Anthem that includes contributions from Phil Collen and Brandon Flowers.