And in an interview with The Hollywood Reporter, the Trolls star has managed to throw shade at his former bandmates.
Speaking about the reason he left the pop group in 2002, Justin said: "We were on a stadium tour, and I just felt like the whole thing was too big.
"It started as a fun snowball fight that was becoming an avalanche. And, also, I was growing out it. I felt like I cared more about the music than some the other people in the group."
People have been quick to point out the rather petty comment about his bandmates Chris Kirkpatrick, JC Chasez, Lance Bass and Joey Fatone.
It's not the first time Justin has criticised his time in the group, specifically what they used to wear.
He told Details magazine in 2012: "There were many moments in my teenage years where I succumbed to, um, the weirdness the group I was in.
"And in trying to conform - we're marionettes - I ended up looking like a moron."
Is that the excuse for that ramen noodle hair too, Justin?
In the same THR interview, Justin apologies for inflicting those coordinated *NSYNC outfits on the world.
"I want to take this opportunity to apologise," the singer said, "because any time you can do dancing from the Nineties, wonderful.