Nick Jonas poses shirtless and grabs his crotch in Flaunt magazine photos Credit: Yu Tsai

Camp Rock what? Nick Jonas has officially left his Disney days behind  the youngest Jonas Brother channeled his inner Marky Mark and, while looking insanely buff, grabbed his crotch while posing for Flaunt magazine.

In a series of shirtless photos, the singer imitated Mark Wahlberg's famous 1992 Calvin Klein ad. In other daring snaps, the 22-year-old bares the top of his bum while wearing a pair of unbuttoned jeans.

This isn't the first time the "Jealous" singer, who is dating 2012's Miss Universe Olivia Culpo, has dared to bare. Last year, the former Disney star posted a shirtless bathroom selfie which almost broke the Internet.