Getty Images file

Justin Timberlake during his 'N Sync days in Los Angeles in May 2000.

Justin Timberlake has only one regret in his career: sporting over-the-top costumes and seriously cheesy hair during his 'N Sync days.

"There were many moments in my teenage years where I succumbed to, um, the weirdness of the group I was in," he tells the May issue of Details. "And in trying to conform -- we're marionettes! -- I ended up looking like a moron."

These days, the singer-turned-actor, 31, takes a manlier approach to grooming. "I don't like when I see guys do too much hair gel. I don't mean Pauly D -- because that's basically performance art. But when you use enough hair gel that your hair becomes a sculpture -- and you wanted it to look that way? It's just weird."




 Rude.