It's a bro battle over who is a superior physical specimen or who can share sillier shirtless Instagram photos. Said battle is taking place between Nick Jonas and his older brother Joe Jonas in the social media space.

A few days after Nick shared a jaw-dropping, buff pic that looked like one of those body switcher photo booths at amusement parks, where you pose and your head is superimposed onto a buff, fake, plastic shell body, Joe followed suit, cradling a furry white pooch and mimicking its bugged-out eyes.

The Jo Bros are SUCH goofballs. And with the exception of the married-and-expecting Kev Jo, they date supermodels and pageant queens, and take funny pics.