07/29/2008 AT 04:35 PM EDT
He may not consider himself a fashion icon, but Justin Timberlake
likes to take style credit where it's due.
"It's funny, I keep hearing Ashton Kutcher
say how he was responsible for trucker caps,” says Timberlake, 27, in the cover story for Fashion Rocks
, a magazine supplement sent to Vanity Fair
subscribers with the new issue.
Timberlake maintains that he and best friend Trace Ayala – with whom he launched the William Rast denim line in 2005 – "were wearing them when we were seventeen."
Still, the singer admits he doesn't try to be trendsetter. "Honestly, I don't walk out of my house thinking, Man, I hope somebody thinks this looks cool!” he says. "There's some stuff I wear that people think is not cool."
But he’s trying to change that.
The Tennessee native has designed a new collection with Swedish fashion designer Johan Lindeberg which he describes as "Southern heritage meets forward European innovation."
Says Timberlake, "I don't want to be Mr. Sexy Back forever."
Timberlake will take the stage at the the Fashion Rocks
concert at Radio City Music Hall Sept. 5. Denis Leary hosts the event whose lineup also includes Beyoncé
, Solange Knowles, Kid Rock, Keith Urban
, Mariah Carey
, Chris Cornell, OneRepublic, Pussycat Dolls, and Timbaland, with special guest Lynyrd Skynyrd; proceeds benefit Stand Up To Cancer. The event will air as a two-hour special on CBS Sept. 9.