In 2014, Gryner put together a side gig, singing with friends Sean Kelly (on guitar), brother Frank Gryner (on guitar), Jordan Kern (on bass) and Tim Timleck (ex-Universal Honey on drums) in the band Trapper, playing "1980s-style melodic hard rock." In May of 2015, Trapper opened for Brit-rockers Def Leppard on 3 Canadian tour dates in Montréal, Ottawa and London, Ontario. Emm Gryner had met and become friends with Def Leppard lead singer Joe Elliott when she toured as a backing singer with David Bowie.