The always-stylish No Doubt singer who is working on her first solo album creates a winning combination, pairing a graphic Vivienne Westwood halter top with green sailor pants and a flirty clutch from her own LAMB clothing line at the L.A. premiere of Anchorman. Her parents are Brit-rockers Gavin Rossdale and Pearl Lowe. That's right, Gwen Stefani is step-mum and the family keeps growing