But his latest tactics for promoting a new single were far from their fresh-faced teenage days on Tuesday night, when he performed a strip tease at BPM New York gay club. The youngest band member, Nick, entertained his gay fans with solo track Jealous on the club's Gay College night before flashing his refined abs and flexing his muscles while standing on a podium. Scroll down for video. Sandwiched between nearly-naked men with dollar bills wedged in their Y-fronts, Nick ripped open his white shirt, after shedding his suit jacket. Looking noticeably transformed from his awkward teen years, the singer boasted a gym-honed physique, which he proudly unveiled inside the Manhattan venue.