While everyone's been talking about Justin Bieber's privates — including his dad, which is just icky — thanks to some awkward paparazzi photos, news of another young pop singer's clothing-optional exploits might have slipped through the cracks. But fear not, I'm hear to fill you in. According to the boys in 5 Seconds of Summer, touring with One Direction — and particularly Harry Styles — can be more than a little revealing.

RELATED: One Direction split! Fans dragged down as boys plan to go separate ways

Band member Ashton Irwin tells Alan Carr  during an interview that backstage at one tour stop, Styles stunned the band by zipping around completely naked on a Segway. "It was just once. I saw full-on ball-sack," Irwin says before Michael Clifford adds, "The worst part was that Luke [Hemming]'s mom was standing right there, and he comes in on the Segway, just butt naked, sees Luke's mom and turns around."

RELATED: OMG: One Direction announces new album

That sounds like a pretty hilarious visual, except for one aspect Irwin forgot to add: "It was like his first time on a Segway, too, so it was kind of awkward turning around and trying to hide things at the same time." Maybe get some more practice first before going full streaker, Harry? 

Follow Ned Ehrbar on Twitter: @nedrick