Britney's new single leaked online

Britney Spears has been forced to release her comeback single Work B**ch! earlier after it leaked online last Sunday.

The 31-year-old US singer's catchy new club tune is off her upcoming album. She tweeted in disappointment: "Woke up today and saw that a low quality version of Work Bitch had leaked."

She continued: "will.i.am, Otto Knows, and I worked SOOO hard on this song! Can't wait for you all to hear it like you're supposed to... "

Taking matters into her own hands, Spears quickly scrambled to premiere "the real thing" on US radio stations and officially release it on iTunes.

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