Britney Spears led the way for Jason Trawick after a couple's workout in LA on Saturday. The two hit the gym rather than any of the many Halloween parties around the city, though in the past she's been known to join in the sexy costume trend. Britney's been logging hours at the studio working on her seventh album, due out early 2011, and one of the producers working on the project recently talked about the pressure of the release. Dr Luke said, "She's such an icon, I don't want to let anyone down. But most importantly, I want to make good music." She was also rumored to have put together a camp of songwriters to write her new tracks and she's making sure she'll be in great shape to make her next hot video and hit the stage again.