Nick Jonas Flaunts His Bulging Arm Muscles Post-Workout

Nick Jonas kicked off his weekend with a sweaty workout sesh, and his dedication shows!

The “Remember I Told You” singer flashed his massive biceps after hitting the gym with his trainer on Friday (September 1) in Hollywood.

PHOTOS: Check out the latest pics of Nick Jonas

Nick paired his busting-at-the-seams white t-shirt with ripped denim shorts, slip-on sneakers, and a baseball cap.

Nick has teamed up with his brother Joe Jonas and Demi Lovato to aid Hurricane Harvey victims. Find out what they’re doing here.

ICYMI, Nick was not too pleased when he recently got called short by a fan!

Check out more hot pics of Nick below…