Taylor Swift Releases New Song 'Sweeter Than Fiction': Listen

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Taylor Swift performs onstage during the 2013 CMT Music awards on June 5, 2013 in Nashville, Tennessee.

Taylor Swift may not yet have formal plans for a new studio album, but she's just released a brand new song called "Sweeter Than Fiction," which hit iTunes at midnight.

The peppy rock-tinged song was co-written with Jack Antonoff, better known as the guitarist from fun. who is currently dating Lena Dunham. For Swift, it's one of her upbeat songs about how great it is to be in love. Listen to the track here:

"Sweeter Than Fiction" is slated for the soundtrack of the upcoming British film "One Chance," due out Oct. 25 in the UK. Directed by David Frankel and produced by Simon Cowell, it tells the story of Paul Potts, who went from working as a store clerk to winning "Britian's Got Talent." The Swift song will run during the film's closing credits. 

Taylor Swift Named Artist of the Year By Nashville Songwriters

Over the past six months, Swift has been writing new material while on her Red Tour. During her acceptance speech after winning Songwriter/Artist of the Year from the Nashville Songwriters Association, she said: "I think the goal for the next album is to continue to change, and never change in the same way twice. How do I write these figurative diary entries in ways that I've never written them before and to a sonic backdrop that I've never explored before?"