Fresh from her recent trip to New York City, BRITNEY SPEARS arrived back in Los Angeles and clearly felt the need for some more excitement in her life. So what did The Britster do?? She put her foot on the pedal and went for an afternoon of go-karting with her pals. Brit was laughing and screaming as she raced around the track. And the former train wreck managed to finish the day without getting into a wreck herself.