Calum Hood Calum Hood of 5 Seconds of Summer performs on NBC's 'Today' show in New York July 22. Photo: Reuters

A nude photo of 5 Seconds of Summer singer and bassist Calum Hood surfaced online this week. Although the image did not show the 18-year-old performer’s face, the boy bander has come forward confirming his identity in the risqué image and apologizing to fans.

“Least ya know what it looks like now,” Hood posted to Twitter Thursday night following the leak. “I’m still just a teenage kid learning from mistakes,” he later added.

The image of Hood's private parts reportedly originated in a video Hood shared with an unidentified recipient via the social networking site Snapchat. The video was then reposted to the 6-second video sharing site Vine, TMZ is reporting.

This isn’t the first time Hood’s social media presence has caused a stir in the 5 Seconds of Summer community. The boy bander previously posted an image of himself cooking while exposing his bare backside and wearing nothing but a beanie. 

“I’m proud of that,” Hood said of the semi-nude image during an appearance on the Australia’s morning show “Sunrise” in May. “I’ve seen Calum’s butt like other a thousand times,” the group's 20-year-old drummer, Ashton Irwin, added. 

Hood isn’t the only 5 Seconds of Summer group member to strip down for the public. The Australian band, which also includes singers Luke Hemmings and Michael Clifford, both 18, infamously accepted their Teen Choice Awards for “Break Out Group” and “Group of the Summer” last month in a pre-recorded video for the show wearing nothing but bath towels.