Nick Jonas' Workouts Are Clearly Paying Off – See the Photos! What’s your Reaction? +1 0 +1 0 +1 0 +1 0 +1 0 Facebook Twitter Email Nick Jonas puts his massive biceps on display while wearing a tank top on his way to the Heart & Hustle gym on Friday (December 1) in Los Angeles. The 25-year-old singer always tries to keep in shape and you can tell that his workouts are clearly paying off! Nick left the gym in a maroon leather jacket and he was seen later that evening stepping out for a night on the town in that outfit. Nick played a Jingle Ball concert on Thursday night, but he sat out L.A.’s show on Friday. [instagram-feed id=”189396108″ showheader=”false” ]