Joe Jonas hits the showers in a white tank top and jeans in a new photoshoot for Notion magazine.

The 27-year-old DNCE frontman has been working hard at getting swole ever since the band released their debut single "Cake By the Ocean" last year, frequently posting shots of his bulging biceps on Instagram.

The new pictorial, shot by Pantelis, shows Joe gripping his torn tank top while getting soaked in a locker room shower, tugging it to the side for a subtle nip slip, and lying on the ground while unbuttoning his pants.

In an interview between the pages, the singer dished on an equally titillating topic: The first time he got caught watching porn.

'I would use my address to log into the websites, and I did this for seven days straight," Joe told the magazine.

"A month later – and by the way, my dad was a pastor at the time – for a week or two straight there was a postcard with a naked woman on it saying 'Come join us again Joe' or 'We really miss you' or 'You naughty boy, come visit us again.'"

Check out a behind-the-scenes look at Joe's "school spirit" shoot below, and read the rest of his full interview at NotionMagazine.com.