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Who Inspired Taylor Swift's Song "I Knew You Were Trouble"?

Video: Which Ex-Boyfriend Might Have Inspired Taylor's Latest Song?

"I Knew You Were Trouble" is the most recent tune Taylor Swift has teased ahead of her Oct. 22 album drop, and, per usual, with it comes speculation about which famous ex-boyfriend may have inspired her latest lyrics. In today's PopSugar Rush we come up with our own "man-behind-the-music" predictions for Taylor's next hit!

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