Peter Kramer / Invision/AP 1 / 14
Peter Kramer / Invision/AP 1 / 14

By Michelle Lanz with reporting by Mary S. Park

Gwen Stefani wears what she preaches. Or at least what she designs, anyway.

The No Doubt rocker came dressed to the tens as she debuted the Spring 2010 collectiion of her fashion line L.A.M.B. at New York Fashion Week yesterday. And for all those leather, stud and spike-loving hipsters out there, this one's for you.

No doubt she's been busy with, well, No Doubt, but she still managed to squeeze in time to design her collection of skinny jeans, leather jackets, shoes and bodysuits (yes, bodysuits) all inspired by punk and '80s-'90s fashion. With a new manufacturing company, she admits she didn't even see the finished product until recently.

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"I was on tour for four-and-a-half months doing this collection with these new people. And I just saw it done like two weeks ago in LA when I got home," Gwen told Wonderwall. "And just everything is so…uh, how do you say it? Just the quality and the level went up night and day."

Already a rock star, fashion icon and wife to Gavin Rossdale by 2004 (the year she started L.A.M.B.), what could motivate Gwen to add "designer" to her plate? Guess a little bit of selfishness goes a long way ...

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"The whole reason I'm doing it because I want to wear it," admitted Gwen with a laugh. "I mean it really is for me."

Well, yeah, she gets every single piece of clothing free! Lucky girl. So what about the rest of us? Do we have to be a seriously "Rich Girl" to outfit ourselves in L.A.M.B. designs? No, says Gwen.

"I was just really trying to keep things that I want to wear like every day things that are easy, accessible, comfortable, casual," said Gwen. "It's funky enough that you still have that edge and that 'making people jealous' kind of thing."

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Sure, she was wearing a L.A.M.B. leather jacket which runs about $475. But most of the pieces in her Spring collection run a moderate $48 to $345. So if we save our paychecks for just a few weeks, we, too, can look just as good as Gwen.