What’s in a name? For Gwen Stefani’s newborn, Zuma Nesta Rock – plenty.Take the unique first name: Computer game aficionados may remember Zuma, a popular 2004 video game from PopCap Games. Zuma required players to remove balls rolling around the computer screen by firing a colored ball at them before they filled up the screen.A more likely name inspiration? Malibu’s famous Zuma Beach, a favorite destination for parents Gwen Stefani, Gavin Rossdale and big brother Kingston. The beach, famous for its surfable waves, was the inspiration for Neil Young’s album Zuma, making the locale a bona-fide musical landmark.And then there’s Nesta, Zuma’s middle name. Gwen and Gavin, avid Bob Marley fans, probably took a cue from the late singer’s middle name, which was also Nesta. Marley’s home base of Kingston, Jamaica, was an inspiration for big brother Kingston Rossdale’s name, so it seems Marley themes are popular in the Stefani-Rossdale…

Gwen Stefani and her rocker husband Gavin Rossdale welcomed their second child, a son, on Thursday in Los Angeles, PEOPLE has learned. The couple named the boy Zuma Nesta Rock Rossdale, a rep for Stefani says. Zuma joins the couple’s other son Kingston, who turned 2 in May.Gwen, 38, who is one of four children herself, has spoken openly about her hope for more children. “I’m in a race to have another,” she told InStyle last year before announcing her pregnancy. The No Doubt singer, also the designer behind the L.A.M.B and Harajuku Lovers fashion lines, told the magazine that Gavin is “super into being a dad.”Gavin, 42, told PEOPLE that the couple planned to follow friends’ advice and get a gift for Kingston so he didn’t feel left out when his new sibling arrived. “Apparently when the baby comes home, you’ve got to bring a really good present…