Jonas, 21, is seen flexing his muscles with his shirt completely unbuttoned, in an Instagram video posted by a fan, reported TMZ.
The former member of Joans Brothers also entertained his gay fans by showing off some fighting moves he learnt for his upcoming TV series, 'Kingdom'. The fan captioned the video with, "Showing off his kingdom skills! nickjonas nice club awesome fun."
Before performing striptease, Jonas performed his new single 'Jealous' inside the club.