People.com Celebrity Parents Christina Aguilera's first postpartum outing: Voting and Best Buy! By Staff Author Published on February 5, 2008 11:43 PM Share Tweet Pin Email Songstress Christina Aguilera had a busy day! The 27-year-old new mama started the morning with her first postpartum interview, then did her civic duty — voting in California — and had a 7 pm Best Buy signing for her new DVD, Back to Basics: Live and Down Under ($15). Son Max Liron is 3 weeks old. More photos available at Xtina Pix. Click below for more from the signing, including a full-length shot.