It seems like Taylor Swift has moved on from her past relationships and is really happy with her new boyfriend DJ Calvin Harris. But, a new video where the "Bad Blood" singer has revealed about a past relationship has left fans wondering if she has actually given a clean chit to ex-boyfriend One Direction member Harry Styles.

Taylor Swift and her relationship with her Scottish DJ boyfriend Calvin Harris has been surrounded by various rumours, including their wedding and baby plans. But amidst all this, something happens, and it gets everyone thinking whether the "Wildest Dreams" singer has indeed moved on and if she is really ready to settle down with the "How Deep is Your Love" hitmaker.

In a brand new video released by Grammy Museum on 28 October, the 25-year-old singer has doled out details about her past relationship and how she felt anxiety throughout that phase. Well, fans don't earn any points for guessing — it's a no-brainer — it's apparently about, Harry Styles.

In the video, Swift is sitting by the piano as she opens up about the obstacles she faced in her former relationship. This piece is from her 30 September acoustic performance at the Clive Davis Theater in Los Angeles, California.

"I'm going to play you a song about a relationship I was in that the number one feeling I felt in the whole relationship was anxiety," she is heard saying.

"Because it felt very fragile, it felt very tentative. And it always felt like, 'Okay, what's the next road block? What's the next thing that's gonna deter this? How long do we have before this turns into just an awful mess and we break up? Is it a month? Is it three days?'" she added.

The Grammy winner went on to explain the nature of different kinds of relationships by saying, "And so, you know, I think a lot of relationships can be very solid and that's kind of what you hope for, for it to be solid and healthy 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."

After expressing her feelings, Tay played out a stripped-down version of the song "Out of the Woods". "So this is a song that I wrote with Jack Antonoff (from indie rock band Fun) and it's called 'Out Of the Woods," she said.

Harry Styles and Taylor Swift began dating in November 2012 and split in January 2013. But has she let that pass, has she really moved on with DJ Calvin Harris? Well, only she can answer that.