Fabric-challenged Britney Spears added yet another offense to her fashion police record on Friday by wearing this barely-there dress to her mother's birthday party. Mom must be so proud. There's no better way to show mom some love than by showing up for her birthday in an outfit that's one step away from your birthday suit. Go Britney. The pop diva arrived at Dominick's in West Hollywood in this black lace "dress," which showed off her pink and black undergarments, proving that she does, indeed, actually have some.