Britney's 'Circus' has leaked

Ten tracks from Britney's upcoming album 'Circus' have leaked in full HQ onto the internet. The only other track is 'Trouble', which in my opinion is very unlikely to leak as its only available through iTunes when you pre-order the album. All These tunes are on fire, but initial hot picks are Mannequin, Circus, Shattered Glass and Out From Under!

Listen (Scroll down to hear ALL the Circus leaks)

Only Trouble and Quicksand (Both iTunes bonus tracks) left to leak now!