If you date Taylor Swift, there's a very good chance she's going to write a song about you. At this point, we're pretty sure she makes all her potential suitors sign a release saying she's entitled to use their relationship as material for her chart-topping tunes.

Though Swift has made the subjects of her previous songs pretty obvious -- John Mayer, Joe Jonas, Taylor Lautner -- she's kept quiet about whom her latest single, "We Are Never Ever Getting Back Together," was written about.

In an interview with "Nightline," Swift explained that the inspiration for the song came after one of her ex-boyfriend's friends came into the studio and said he had heard they were getting back together -- which was not the case.

"When he leaves, Max and Johan are like, ‘So what’s the story behind that?’ And so I start telling them the story of break up, get back together, break up, get back together, just, ugh, the worst," she explained.

So who is Swift's mystery man? It's not Joe Jonas, who actually spoke out to eliminate himself as a potential candidate.

"I can say it's not about me, because I don't think we've ever tried another time. I can tell you it's not about me. I think we're cool. It's pretty years removed," he told Maryland radio station 94.7 Fresh FM.

Now, a source tells Us Weekly (via Hollywood Life) what we knew all along -- Swift's breakup anthem is "definitely about Jake [Gyllenhaal]."

Though the guy she cast in her "whimsical" video for the song looks more like Maroon 5 frontman Adam Levine, there are plenty of other hints that it's Jake who exhausted her with his emotional whims.

Swift's video boyfriend wears a navy blue down vest that's very similar to a jacket Gyllenhaal wore on one of their dates. Then there is the matter of the scarf that the video beau gives her, which reminds us of photos of Swift wearing Gyllenhaal's scarf.

Then there is the bracelet Swift is wearing in the video, which looks suspiciously like the $100,000 one that Gyllenhaal was rumored to have given her for her birthday.

But the denouement to this mystery is the fact that Swift and Gyllenhaal broke up and got back together. In January 2011 it was reported that the couple broke up, but just a few days later the pair were spotted having dinner in Nashville, sparking rumors they had reconciled.

Swift might not be naming names this time, but the video speaks volumes.

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    FILE - This Nov. 22, 2011 file photo shows singer Taylor Swift performing at Madison Square Garden in New York. Swift's single, "We Are Never Ever Getting Back Together," is the top song for the week ending in Aug. 27, 2012. (AP Photo/Charles Sykes, file)

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    FILE - This May 20, 2012 file photo shows singer Taylor Swift at the 2012 Billboard Awards at the MGM Grand in Las Vegas, Nev. Swift joined several members of the Kennedy clan, including boyfriend Conor Kennedy, in a somber weekend visit to the grave of his mother on Cape Cod. Swift and Kennedy held hands and at one point appeared to bow their heads in prayer, as did his siblings, while visiting the resting place of Mary Richardson Kennedy on Sunday, Aug. 19. (Photo by John Shearer/Invision/AP, file)

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    FILE - In this March 2, 2012 file photo, Taylor Swift performs on stage at the Burswood Dome during the opening night of her "Speak Now" Australian tour in Perth, Australia. Multi-platinum selling superstar Taylor Swift is releasing her fourth studio album called

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    FILE - In this Aug. 7, 2011 file photo, singer Taylor Swift arrives at the Teen Choice Awards in Universal City, Calif. Swift wears a white halter-style dress just like Marilyn Monroe's dress in "The Seven Year Itch." Monroe passed away a half-century ago this week, a murky death that remains one of Hollywood's most tantalizing mysteries. But look around: Her legend lives on, more vibrantly than ever. In a twist she surely would have appreciated, this 1950's bombshell has become a 21st-century pop culture phenom. (AP Photo/Dan Steinberg, File)

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    Taylor Swift arrives at the Teen Choice Awards on Sunday, July 22, 2012, in Universal City, Calif. (Photo by Jordan Strauss/Invision/AP)

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    Grammy award winning artist Taylor Swift performs during the Walmart Stores Inc. shareholders' meeting in Fayetteville, Ark., Friday, June 1, 2012. (AP Photo/April L. Brown)

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    In this Nov. 20, 2012 photo, Taylor Swift arrives at the 39th Annual American Music Awards in Los Angeles. Swift is donating $4 million to the Country Music Hall of Fame and Museum to fund the 7,500 square foot-plus Taylor Swift Education Center in Nashville, Tenn. (AP Photo/Chris Pizzello)

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    Taylor Swift poses backstage with the award for entertainer of the year at the 47th Annual Academy of Country Music Awards on Sunday, April 1, 2012 in Las Vegas. (AP Photo/Isaac Brekken)

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    First lady Michelle Obama, right, presents the big help award to Taylor Swift onstage at Nickelodeon's 25th Annual Kids' Choice Awards on Saturday, March 31, 2012 in Los Angeles. (AP Photo/Chris Pizzello)

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    In this film image released by Universal Pictures, Taylor Swift voices the character Audrey for "Dr. Seuss' The Lorax." (AP Photo/Universal Pictures, Sam Urdank)

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    Singer and actress Taylor Swift arrives at the premiere of the animated feature film "The Lorax" in Universal City, Calif. on Sunday, Feb. 19, 2012. (AP Photo/Dan Steinberg)

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    Taylor Swift poses backstage with the awards for best country song and best country solo performance for "Mean" at the 54th annual Grammy Awards on Sunday, Feb. 12, 2012 in Los Angeles. (AP Photo/Mark J. Terrill)

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    Taylor Swift performs onstage during the 54th annual Grammy Awards on Sunday, Feb. 12, 2012 in Los Angeles. (AP Photo/Matt Sayles)


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