Taylor Swift officially claims writing credit for Calvin Harris song ''This is what you came for'

Celebrities: Taylor Swift has dumped her assumed name and officially take credit for co-writing the Calvin Harris song ''This Is What You Came For.'' According to TMZ, the performing rights organization Broadcast Music, Inc (BMI) had swapped the pop star's real name on its website.

The former couple had worked on the song together when they were lovers but choose to keep Swift's involvement in the music a secret for risk of their relationship overshadowing the music.

Swifts PR team later revealed that it was Swift who composed the song under the assumed name Nils Sjöberg after the couple had separated.