Nick Jonas was once one third of straight-laced Disney-made boyband The Jonas Brothers.
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.
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.
This year, Nick has trained in mixed martial arts for the role of a cagefighter in TV series Kingdom and had the body to boast for all of his hard work.
And, while he danced provocatively for the crowd and treated them to the 'Gun Show', he left his trousers on and his shirt around his shoulders encouraging the crowd to use their imaginations for the rest.
Nick had been making a special appearance to promote his latest single and performed inside the club before being encouraged to strip for the crowd.
The 21-year-old singer, who split with brothers Joe and Kevin to allow them to pursue solo efforts, is currently dating Miss Universe Olivia Culpo and openly admits the song entitled Jealous is about her.
He told MTV news: 'I’m with my girl and [some other guys are] looking at her and I was like, I’ve just been training for three months how to be a real fighter for a TV show and I could hurt you now.
'It was a moment when I was like, I’ve got to write about that because the fact that I got so passionate about it so quickly means that there is a song there.'