She has 5 American Music Awards, 7 Billboard Music Awards, 6 Grammys, 23 top-ten singles, and more than 26 million Twitter followers, and only 1 name — RIHANNA. The highest-selling digital artist in US history is in our studio for the release of her highly anticipated new CD, "Unapologetic." You won't see her anywhere else on daytime! From the sold-out venues to the magazine headlines, she's telling Ellen about all of it today. Plus, one incredibly lucky fan is getting a surprise from Rihanna herself that could be the greatest gift a fan could ever get! You won't want to miss this huge announcement! Then, a performance you'll have to see to believe. It's so innovative, so groundbreaking and so… blue! BLUE MAN GROUP is here to give you a taste of their thrilling new show in Las Vegas that will blow you away. And it's the red carpet of the "Twilight: Breaking Dawn Part 2" premiere! Don't miss the biggest stars from the movie on Ellen today!