Ellen always loves it when the incredible MARY J. BLIGE performs -- one time, Mary even surprised Ellen for her birthday! Now the multiple Grammy-winning singer is back. Last year was a big year for her -- she even had the honor of performing at President Obama's inaugural celebration. It looks like 2010 will be a great year for her -- she's starting it off by coming to the show! MATTHEW BRODERICK is also starting the year off on the right foot! After three years, he's returning to chat with Ellen... and a lot has changed for him; his son is now 7 years old, and Matthew and his wife, Sarah Jessica Parker, now have 6-month-old twin girls! He'll tell Ellen all about the adorable kids and about his new movie, "Wonderful World." And, from "The Biggest Loser," trainer JILLIAN MICHAELS will be visiting and demonstrating a workout routine -- so don't break those resolutions just yet!