Nick Jonas: I'm into fancy sweatpants

As part of Billboards Music Men of Style issue Nick Jonas reveals his greatest fashion regret and the accessory he can't live without.

"I like classic elements but with bolder statements," says the ­youngest of the Jonas juggernaut, whose career as a solo artist has taken him to new heights -- and new venues, from the unveiling of a Lord & Taylor holiday window to a gay club in New York's Hell's Kitchen. "Your clothing and approach to fashion are the visual statements you make as a performer or a songwriter."

Jonas has no trouble ­deciding what to wear at home:
"In my ­apartment by myself, it's usually just me in my underwear," he says. (For the record, he prefers boxer briefs.)

Fashion Faux Pas
"Bow ties are great, but there's a time and place for them. Bow ties for everyday wear is maybe not the best move, and I was doing that for a minute."

Trend He's Trying
"I've been getting into the fancy sweatpants trend -- the sweatpants-you-can-wear-to-work kind of vibe. Public School is doing a very cool job with that."

Every Guy Should Have...
"A classic black leather jacket. Mine is Margiela and I take it everywhere I go. If it's a two-day trip or a two-month trip, it's with me."