As expected, Gwyneth Paltrow [1] returned to Glee [2] (along with Kristin Chenoweth [3]) to celebrate the show's 100th episode this week. Though the theme was to reinvent old favorites from the New Directions, Paltrow's character Holly decided to mix it up, performing Pharell's Oscar-nominated hit, "Happy." OK, so the scene doesn't quite compare to Pharrell dancing with Lupita Nyong'o at the Academy Awards [4], but it's still pretty infectious and energetic. Check it out: