Pictures of Jennifer Hudson at the Nickeloden Up Fronts

Jennifer Hudson made a quick stop in Washington, DC yesterday morning before taking the stage at NYC's Lincoln Center during Nickelodeon's upfront presentation to belt out her new single "Where You At." She's back in the US after a trip to Paris Fashion Week, where she showed off her svelte figure at a cocktail party honoring Michael Kors. She's been busy working with celebrity trainer Harley Pasternak as she gears up for the release of her newest album, I Remember Me, on March 22, and showed off the results of her efforts again last night in a sexy leather minidress.