Britney Spears celebrated regaining visitation rights of her two sons this weekend by treating herself to a weekend of the usual: a little driving, a little ice cream and a stop at Starbucks. On Saturday night. after the singer, 25, was spotted behind the wheel of her white Mercedes with Sean Preston, 2, and Jayden James, 1, in Studio City, California, Spears skipped out on clubbing for some quiet time with her children at her Beverly Hills home. Kevin Federline's bodyguard picked the boys up around 9 a.m Sunday. At 1:45 p.m. Spears and a pal hit a nearby Starbucks, where she was met with a barrage of questions from photographers. Fresh from getting her lips plumped last week, Spears covered her mouth the entire time as she spoke. When asked what she thought of the Malibu fires â€” which destroyed at least 39 homes and other buildings in Southern California Sunday” she told photographers, "Well, it's not near my house." When asked about her Halloween plans, she replied, "I don't know yet." As for what sons Sean and Preston will dress as, "I don't know ... maybe pumpkins," she said. She also revealed her next single will be called "Someone" and is due out in December. At around 5 p.m., Spears, dressed in hot pink shorts and a white shirt and toting around an oversized fuchsia purse, hit Epitome tanning salon in Bel-Air. By 5:25 p.m., sources tells Usmagazine.com Spears stopped off at a Cold Stone Creamery for "cake batter" ice cream. "Britney kept asking the worker to "hurry up" and said that Cake Batter was her favorite," a source tells Us. She was back home by 6 p.m. As of 9 p.m., she had still not left her house.