Taylor Swift has apparently finally leaked which of her songs was about One Direction member Harry Styles. The revelation was made amid rumors that the singer and her current love Calvin Harris have split.

As reported by Mashable, Calvin Harris' girlfriend talked about her One Direction ex-boyfriend before she sang an acoustic piano version of "Out Of The Woods."

"I'm going to play you a song that I wrote about a relationship that I was in, that the number one feeling I felt in the whole relationship was anxiety, because it felt very fragile, it felt very tentative," she explained in the video. 

Taylor Swift did not directly point out that the song was about Harry Styles. But the said song has long been rumored to be about the One Direction member as told by Metro UK.

Despite having anxiety issues with the unnamed relationship, Calvin Harris' girlfriend still pointed out that it was special.

"I think a lot of relationships can be very solid and that's kind of what you hope for -- solid and healthy," Swift echoed. "But that's not always what you get. And it doesn't mean that it's not special and extraordinary just to have a relationship that's fragile and somehow meaningful in that fragility."

According to Bustle, the "Out Of The Woods" singer dated the One Direction member in 2012 but they broke up just a few months later. He has expected that she would be writing a song about him as revealed in Us Weekly. But Swift has long been mum about who her songs were and apparently wanted to keep it that way.

"I've never named names, so I feel like I still have a sense of power over what people say-even if that isn't true, and even if I don't have any power over what people say about me," the "Out Of The Woods" singer told GQ. "The fact that I've never confirmed who those songs are about makes me feel like there is still one card I'm holding."

The purported "Out Of The Woods" Harry Styles talk was the second time that Taylor Swift opened up about an ex-boyfriend in recent weeks amid split rumors with current beau, Calvin Harris. Ryan Adams also recently got her explain the inspiration behind "All You Had To Do Was Stay" and she said it was inspired by a dream about an ex-boyfriend.