Who's On Taylor Swift's New Album?

Taylor Swift is the name on everybody's lips this week. On Monday, Swift premiered her new single, "Shake It Off," debuted the song's accompanying music video (which has received mixed reviews due to claims of cultural appropriation), and announced that her new album, 1989 , will be released on Oct. 27. Whew. It's been a big week for Swift and her dedicated legions of fans, that's for sure!

In the weeks leading up to Swift's big announcement, I speculated about what listeners could expect from her new music. I wanted to know who Swift had collaborated with. We already knew that Swift had worked on "most of" her new album with producer Max Martin, but we didn't have much else to go on. Until now.

On Monday, Swift declared that 1989 is her first full-on pop effort, and when the album went up for pre-order on iTunes, the names of her collaborators were revealed. According to the iTunes composer credits (which have since been removed, so it's important to note that this information could be subject to change), Swift worked on six of 1989's 13 tracks with Martin and his frequent producing partner, Johan "Shellback" Schuster. She also worked with OneRepublic lead singer Ryan Tedder, Jack Antonoff of fun., and perhaps most surprisingly, singer Imogen Heap!

You can check out a screenshot of the iTunes composer credits at message board NeoGAF.

Back in March, The Hollywood Reporter broke the news that Tedder had done a song for Swift's new album, so his inclusion doesn't come as a surprise (but I'm very happy about it). Given that Swift said that 1989 was inspired by late '80s pop, working with Antonoff makes sense. Many of the songs that appear on Strange Desire, the debut LP from Antonoff's band, Bleachers, definitely have an '80s vibe to them. But Heap? Wow. I certainly didn't see that coming! But maybe I should have.

In Oct. 2012, just before the release of Swift's last studio album, Red, she named Heap as one of her "dream" collaborators in an interview with TIME. Granted, Heap's songwriting credit could be the result of Swift sampling one of her songs, which might be cool, but I'm really hoping that the two women actually got to sit down together in the studio. We don't need another Jason Derulo "Whatcha Say"-type situation on our hands.

Admittedly, I've kind of lost track of Heap's solo career, but Monday was a big day for her, as well — she released her new album, Spark s. I haven't had a chance to listen to it yet, but 2005's Speak for Yourself and 2009's Ellipse are still on heavy rotation on my iPod. Generally speaking, Swift and Heap have very different writing styles (though Heap's songs can have a storytelling feel to them, as well — check out "Just for Now" or "Goodnight and Go"). I think that a collaboration between the two could be very interesting. I can't wait to hear it!

1989 can be pre-ordered on iTunes and on Swift's official website now.

Images: Getty Images (2)