It's a happy 31st birthday for Britney, just look at her amazing year.
In May, Britney secured a seat as a judge on 'The X Factor'. She as paid $15 million for one season on the show. She is the mentor to the frontrunner, Carly Rose Sonenclar. Britney recently released the dance jam, 'Scream and Shout' with Will.i.am, which reached the top of the iTunes chart. On top of all of this, the singer got a new puppy, Hannah!