Nick Jonas Goes Shirtless in Buff Post-Workout Photo!

Nick Jonas shows off his buff shirtless body in this post-workout photo he posted on Instagram on Tuesday afternoon (July 30).

“I never do this but… Healthy living and fitness update. Post workout picture. #diabeticinshape #2.0,” the 20-year-old Jonas Brothers singer captioned the photo.

Nick and his brothers Joe and Kevin are currently on tour around the United States. Later tonight they will be making a stop in Charlotte, North Carolina!

Also pictured inside: Some of Nick‘s other recent Instagram photos, including one of him working out in the gym.