Adam Levine shows off abs during shirtless workout in Hawaii

Adam Levine may have moves like Jagger, but he pumps iron like Schwarzenegger.

The lead singer of Maroon 5 shared on his Instagram Stories on Tuesday one of the workouts he’s been doing while on vacation in Maui, Hawaii, to stay in shape. “These are harder than they look,” he captioned a video of himself lifting a kettlebell weight while doing a forward lunge. “Wobbly as fuq.”