Do you love Britney?? What about Ellen Degeneres??... You do! Then you're going to love this! Britney Spears will be on The Ellen Degeneres Show on Tuesday, Dec. 3rd. Be sure to tune in to watch by checking your local listings, here!

In the meantime, check out Britney's two favorite princesses, Sophia Grace & Rosie celebrating Britney's birthday with a princess birthday party, as well rehearsing some her dance moves from her Las Vegas show, Piece of Me.  It's so adorable, you'll wanna watch it twice!!