taylorgraziamainImage: Getty Images

Taylor Swift was at first happy to let then boyfriend Calvin Harris take all the credit for the hit he released but she secretly wrote, This Is What You Came For.

Tension over the ex-couple’s undercover collaboration is said to be what led to their split, and in the wake of their break-up it was leaked (assumedly by Taylor herself) that she in fact had written the hit and been credited under a pseudonym.

It’s not known what kind of private agreement Harris and Swift have come to over rights to the electro-pop hit, but Taylor is now taking ownership of it regardless.

At her first and only performance of 2016 at the Formula 1 U.S. Grand Prix weekend in Austin, Texas this weekend, the Grammy winner performed the song on the piano, singing the lyrics that we’ve come to know sung by Rihanna in Calvin’s release.

taylorgraziabody

Image: Getty Images

In fan footage posted online, Swift says to the audience: “I’ve never played this song live before. So if you know it, maybe you could sing along and then I’ll know what it’s like to hear it sung back to me.”

There’s a split-second moment in the first video below where she briefly looks out to the crowd and smiles to herself almost devilishly, as if to say “I won”.