Taylor Swift is single and ready to…sing and dance to her ex-boyfriend’s song, apparently. Taylor made her first public appearance since splitting with Tom Hiddleston at NYFW on Friday and while supporting pal Gigi Hadid she also sang along to ex Calvin Harris’ ‘This Is What You Came For,’ the song which caused so much controversy back in July.

A video posted by Taylor Swift (@taylorswift) on

In a video posted to her Instagram account, Taylor is filming friend Gigi as she walks the runway during Tommy Hilfiger’s NYFW show. During the clip, Harris’ ‘This Is What You Came For’ can be heard playing in the background as Swift turns the camera on herself and sings along.

Taylor captioned the video: ‘SO PROUD OF YOU GIGI!!!! That show was INSANE. Congrats to Gi, Tommy, and all the girls who just owned that runway!!’ Sitting alongside Taylor were model Martha Hunt, Lewis Hamilton, Gigi’s mom Yolanda Hadid and brother Anwar Hadid.

More: Calvin Harris Speaks About Taylor Swift Break-up For The First Time

Taylor also shared a pic of her and Martha looking at their phones during the show which she captioned: ‘Looking up videos of kittens hugging each other, probably.’ The same shot was shared by Martha over on her Instagram, but she chose to write, ‘Tinder. Jk chill.’

Earlier this week it was reported that Taylor had split from actor Tom Hiddleston after a whirlwind three month romance. The Hiddleswift union had come quickly after her break-up from British DJ Calvin Harris, a split which appeared to turn ugly right after her rebound.

A photo posted by Taylor Swift (@taylorswift) on

Soon after she began dating Tom it was revealed that Swift had secretly penned ‘This Is What You Came For’ with the DJ confirming the news on Twitter. But after revealing that his ex had wrote the song’s lyrics, Calvin then lashed out adding, ‘Hurtful to me at this point that her and her team would go so far out of their way to try and make ME look bad at this stage though.’

Speaking to British GQ magazine earlier this week, Calvin opened up on the Twitter debacle for this first time, admitting that he had succumbed to ‘pressure’. "It's very difficult when something I consider so personal plays out very publicly," he said. "The aftermath of the relationship was way more heavily publicised than the relationship itself."

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“When we were together, we were very careful for it not to be a media circus. She respected my feelings in that sense. I'm not good at being a celebrity. But when it ended, all hell broke loose. Now I see that Twitter thing as a result of me succumbing to pressure.

“It took me a minute to realise that none of that matters. I'm a positive guy,” he added. "For both of us it was the wrong situation. It clearly wasn't right, so it ended, but all of the stuff that happened afterwards.”