Last week, Nick Jonas turned the temperature hotter and left us burnin' up for him when he tweeted a shirtless selfie! His chiseled abs and defined v cut remind us of another pop star who snaps shirtless pics from time-to-time... Cody Simpson. So we ask the question: Who has the hotter shirtless bod?

The Jo Bro admitted that he normally doesn't post such brazen photos, but he made an exception for a good cause. "I never do this but... Healthy living and fitness update. Post workout picture. #diabeticinshape #2.0," he tweeted, including a swoon-worthy pic of himself.

Few singers can own up to having a body that toned, Cody Simpson being one of them. The Aussie, who practically lives at the beach, has been photographed flaunting his six pack and flexing his biceps, much to the delight of his female fans. Occasionally, he even posts a selfie sans-shirt, showing the benefits of a regular workout regimen.

We know it's a tough decision, but who is rocking the better shirtless bod?