10. Dear John - John Mayer

Finding the first item on our list is easy since, sure, it is John Mayer. Mayer reportedly didn't realise Swift penned it, and he felt "humiliated," as he said to Rolling Stone in 2012.

9. Better Than Revenge - Joe Jona

While the song is somewhat about the short-lived Taylor Swift and Joe Jonas romance (which lasted from, it seems to be more about Camilla Belle, an actress that Tay-tay supposedly targeted for dating Jonas immediately after their breakup.

8. Teardrops on my Guitar - Drew Hardwick

Taylor's breakthrough song, which won over romantics and country music fans worldwide, was motivated by her relationship with Andrew Hardwick, a classmate.

7. All Too Well 

This Red song features lyrics about a scarf Taylor left at Jake Gyllenhaal’s sister Maggie’s home. The scarf strikes again.

6. Begin Again - Connor Kennedy

What it's about—picking yourself up after a bad breakup and giving it a shot with a new flame—is obvious from the title.

5. Back to December - Taylor Lautner 

Back to December is very different from her ex-inspired songs, which tend to make fun of the guys who provided the inspiration.

4. Mine - Corey Monteith

Despite frequent dating rumours in the summer of 2010, the late "Glee" star technically does not count among Swift's ex-boyfriends because the two parties never officially confirmed their relationship.

3. I Knew You Were Trouble - Harry Styles 

The lyrics to the upcoming Harry Styles-inspired hit are "trouble, trouble, trouble." According to rumors, this song was composed during one of their numerous breakups.

2. We Are Never Ever Getting Back Together - Jake Gyllenhaal 

When this song first came out, it was difficult because Mayer, Lautner, and Jonas were all the subject of rumours. Taylor was never able to confirm if it was the "Donnie Darko" actor, but other sources have managed to pin the culprit.

1. Style - Harry Styles 

If the name isn't yet evident, perhaps the James Dean resemblances would suggest a well-known ex-lover.