Zuma: Gwen Stefani Releases Baby Picture (PHOTO)

No Doubt's official website posted a photo of singer Gwen Stefani with her baby son, along with this message: "We wanted to share with you the first photo of Zuma Nesta Rock Rossdale. Gwen, Gavin, Kingston and Zuma are all doing well and enjoying being a party of four."

Gwen is married to singer and former Bush frontman Gavin Rossdale.

Zuma, weighing in at 8.5 lbs, was born at at 12:46 PST on August 21, 2008. He joins 2-year-old song Kingston.