The album "Circus" by Britney Spears was released on her birthday, December 2, 2008. The weight of media expectation at the time was huge as her last album, "Blackout," truly divided critics, and it was difficult to foresee what would be regarded as being a ‘return to form’ considering just how radical her last work was. She recorded the album in the summer of 2008 after her much-publicized personal struggles saw her placement under conservatorship, as we know now as the #fre