Gwen Stefani's Cutest Moments with Kingston and Zuma!

Credit: Paul Hiffmeyer/Disneyland

Happy 42nd Birthday, Gwen Stefani!

Gavin Rossdale's wife is no longer just a No Doubt singer, she's also a philanthropist, designer and mommy of two adorable little boys: Kingston, 5, and Zuma, 3.

"Now I'm a wife and a mother of two. It's a really different role," Stefani told Elle in 2008. "I always referred to No Doubt as a marriage, because that's what it's like to be together for so long and go through what we've been through... I can't really have that relationship with them anymore. My priorities are always going to be my husband and my family now. That's a huge, huge thing."

She joked of Kingston, then 3: "We're just hoping for the best and that he's not going to turn out to be a freak, but we'll see."

According to an insider, the doting mom shelled out $15,000 for Kingston's 4th birthday party in May 2010. The party's 100 guests -- including Kate Beckinsale and David and Victoria Beckham -- noshed on burgers, hot dogs, tacos, quesadillas, french fries and chicken fingers. On hand to entertain the kids: a bouncy castle, three birds, a face painter, a balloon artist, and roaming super hero characters.

This November, Stefani's Harajuku Mini collection for Target will launch. "I've always wanted to do a cool children's fashion line inspired by the supercute and playful kid's clothing you find in Japan," she told WWD.