It's been awhile since we've heard from Britney Spears, and that's the way she likes it. Her life, once splashed across the Internet and checkout aisle, is instead focused on motherhood, her health and expanding the Britney empire. Though she took the summer off from performing her wildly successful Piece of Me residency at Planet Hollywood in Las Vegas, Britney still got to work, *****. She announced the launch of her first lingerie line, debuted a new fragrance, shot photos for a fitness