ELLEN POMPEO is very busy, but not too busy to stop by the show! She's back at work on "Grey's Anatomy" -- which is still the biggest show on ABC -- and she now has a brand new baby girl! Her name is Stella, and we'll hear all the adorable stories. Then, you know Nick Jonas from The Jonas Brothers... now he's trying out a new style with his brand new band, NICK JONAS AND THE ADMINISTRATION. He'll perform his song "Who I Am" -- and you'll love it!