Taylor Swift sings to ex Calvin Harris' single at NY Fashion Week

Taylor Swift is out and happy despite her very public breakup with Tom Hiddleston; besides, she is singing to her former boyfriend Calvin Harris' 'This is What You Came For'.

The 26-year-old popstar was latest seen cheering on at the front row and center for her bestie Gigi Hadid, who was debuting her capsule collection with Tommy Hilfiger at the New York Fashion Week, reports E! Online.

The 'Love Story' hit-maker did not seem to be bothered at all even when the runway show is reported to have opened with Harris' single.

She was seen dancing as she sang along to the song with Martha Hunt, who came along with her to the show.

The 'White Horse' singer later posted a video on her Instagram, of Gigi Hadid walking down the runway and them singing.

"So proud of you Gigi! That show was insane," she tweeted.

The Grammy Award-winning singer also wrote, "Congrats to Gi, Tommy and all the girls who just owned that runway #tommyxgigi."

New York Fashion Week 2017 has seen celebrities and fashionistas, including the likes of Kate Mara, Jessica Alba, Karlie Kloss, Hailee Steinfeld and many more, attending the project runway.

On a related note, the Scottish DJ, in an interview, had recently expressed regret over tweeting harshly about Swift, after they ended their one-year relationship earlier this year.