Taylor Swift's new single 'Mine' has been leaked online and has been rush released for online sale in the US.

"An unauthorized low-quality mp3 file of the single appeared online earlier today. As the low-quality file started to spread virally the decision was made to rush release “Mine" to iTunes and Country radio to ensure that Taylor’s fans were able to hear the single as she intended" said Swift's record company Big Machine Records earlier today."

Within hours of release to Country Radio in the US, the new track has jumped to #35 on the Billboard Country Radio singles chart.

UPDATE: The track has now also been rushed to Australian radio and online stores.