Britney Spears packed up her sons, Jayden James and Sean Preston, and ventured out to a mall in rainy LA yesterday. The trio did their best to stay dry by ducking into a Gymboree. Brit's been spending lots of time with the boys, but she may miss out on Sean Preston's Little League game this weekend since she's scheduled to take the stage in San Francisco for a live performance. She's already showed us her dancing skills in video for Hold It Against Me, the first video from Femme Fatale, and she'll put her moves on display during the five song mini concert. The show was originally scheduled to take place outdoors, but due to a stormy forecast, organizers have moved the event indoors to Bill Graham Civic Auditorium. Good Morning America will tape the event and air the footage Tuesday morning, the same day her album drops!