Britney Spears had two costume changes, and two wardrobe malfunctions yesterday. We spotted her twice at the Beverly Glen Market Place in LA. First, wearing a blue dress that appeared to be all wet down the back (had she been swimming, or was it sweat?) She stopped by a salon to get her hair done on that visit. Later, she returned to the upmarket strip mall for lunch with her bodyguard wearing a white dress with a large stain down the front. You’d think she could afford a bit of dry cleaning now and again. See the pics after the jump.