All jokes aside, Joe and Nick have been hitting the gym hard.
"I think for both of us, we obviously like to train, but when we're in the gym together, it's just a different thing," Joe said. "We have favorites we like to do and every once in awhile we'll try to bump it up and go at it."
Joe doesn't just have moves in the gym. He also puts the moves on Nicki Minaj in the music video for DNCE's new single, "Kissing Strangers," though he says the two didn't actually kiss.
"Obviously we like to tease people, and that's part of the fun," he confessed. "[But] we'll have some performance live, so we'll see."
In the meantime, ET played a little game of "kiss and tell" with the band, who are challenging fans to kiss some strangers of their own by sharing their own music videos to "Kissing Strangers" on the Musical.ly app.
One word to describe Joe's first kiss?
"Bowling alley," he said, while bandmate Jack Lawless called his "embarrassing."
Joe's favorite kissing tip is "gum," but his favorite kisser surprisingly isn't girlfriend Sophie Turner -- it's cleverly "the band Kiss."