Ah, so that's what Gwen Stefani's peculiarly named baby Zuma looks like. Cute! Gwen Stefani has officially introduced the world to her newborn son Zuma. On Wednesday, she posted an adorable portrait of her and her 2-month-old on her Web site. "We wanted to share with you the first photo of Zuma Nesta Rock Rossdale," she writes. "Gwen, Gavin, Kingston and Zuma are all doing well and enjoying being a party of four." On Wednesday, Stefani gave photographers a glimpse of Zuma as the two visited a library in Beverly Hills. "He's amazing, he's very sweet," pop Gavin Rossdale told Usmagazine.com of their newborn at Us Weekly's Hot Hollywood bash last week. Stefani and Rossdale - who recently celebrated their fourth wedding anniversary - welcomed the baby this past August. Their son Kingston(below picture) is 2. credit: eonline + icydk