Joe Jonas: Push-ups at the Park!

Joe Jonas gets in some exercise at a local park on Monday (April 4) in Los Angeles.

The 21-year-old singer worked on his fitness with a trainer who had him doing sets of sprints and push-ups.

Over the weekend, Joe and younger brother Nick enjoyed a guys’ night out with some bowling at Pinz.

Joe also hit the Kids’ Choice Awards to present the blimp for Favorite Movie.

10+ pictures inside of Joe Jonas…