Christina Milian has not been shy since her split from The-Dream. After partying all night with Serena Williams, the baby mama (minus her wedding ring) headed to the Westfield Topanga Mall in Canoga Park, Calif., for some shopping with her mother Carmen. C. Mili must have known the paps would be on her tail because she dressed up for the occasion, teetering in stiletto boots while pushing little Violet Nash in a stroller.