Britney Spears' new single 'Work Bitch' has been leaked online a day early.
Britney Spears to Release Another Greatest Hits Album
The single was scheduled to hit airwaves on Monday, instead it landed on the Internet today.
UPDATE: As a result of the leak Spears was forced to push the official release up to 3pm Sunday.
Take a listen to the official version below and see what you think.