gwenstefaniinstylenovember2011-5.jpgInStyle/Michelangelo Di Battista

gwen-stefani-instyle-cover_230.jpgGwen Stefani is InStyle’s November cover girl, and the rock star/mom opens up about motherhood, music and fashion.

"Being a mother is probably the most challenging thing I do,” Gwen says of parenting her two young sons, Kingston and Zuma. "The thing I'd like to do is enjoy these boys while they're young—so I don't regret I was working too much when they're big and don't want to cuddle with me anymore."

So what fashion and beauty tips does Gwen share with the mag? “My hair color is L'Oreal, but I won’t reveal the number,” she jokes. “And I do my roots as often as Marilyn Monroe did hers. I’m serious. I found out.” Gwen's perfect platinum tresses come from a $12 box? Really!?

As for looking picture perfect, Gwen admits she never goes bare faced. “The makeup goes on every day, even if I’m not going anywhere," she says. However, she does let loose when it comes to eating, which is surprising given her fab figure! "I'm conscious of what I eat, but some days I cave and have cookies," she says. "On fun nights with the family, my husband cooks amazing things and there will be carbs."

In addition to being a mom and looking gorgeous 24/7, Gwen is set to launch her third Harajuku line in a month and she also revealed that a new No Doubt album is slated for next year! How does she do it all!?