Phil Collen is involved in multiple musical projects, including contributing to Crossbone Skully's new single 'Thunder Love' and their upcoming album, as well as collaborating with The Gaslight Anthem's Brian Fallon on his new solo album, which features Brandon Flowers and other notable artists. He also commented on Def Leppard's future, stating the band may not release a new album until 2028, while reflecting on his bandmates, live performances, and clarifying a past incident with Glenn Danzig. Collen also credited Mutt Lange for much of Def Leppard's success in the 1980s and praised the band's commitment to live singing.