Chris Pizzello/Invision/AP
Swift wrote it under the pseudonym Nils Sjoberg, which her rep confirmed.
The song, featuring Rihanna, was a massive success but the former couple decided to keep Swift's involvement with it under wraps for fear that it may overshadow the actual music- that is, until Harris said in an interview that he couldn't see himself collaborating with Swift.
Swift apparently felt disrespected by Harris' comments, the two abruptly broke up, and now we have Hiddleswift.
Mark Metcalfe/Getty Images
In June, fans noticed a major change on the Wikipedia page about the song, "This is What You Came For."
Check out the credit under "writers":
Wikipedia
@CalvinHarris confirm nils sjöberg on this is what you came for is taylor swift and i'll leave you alone for the rest of my life
- Stephanie Olson (@stephgolson) June 20, 2016
what if nils sjöberg is taylor swift? ??
- ? (@swiftsblooms) June 21, 2016
Nils Sjöberg is Taylor's alias woah
- Nils Sjöberg (@hidddleswift) June 21, 2016
@taylorswift13 is this nils sjöberg? =) haha how in hell did u come up with that alias?
- DjMiBsweden (@DjMiBsweden) June 3, 2016If you Google Nils Sjöberg, there's no songwriter with that name.
There is, however, a gymnast from the 1950s named Nils Sjöberg and Swedish man with the same name who thinks this whole thing is hilarious:
"Taylor Swift's fans believe I am @taylorswift13", an unexpected #firstworldproblem #taylorswift #swiftie https://t.co/Xzkl9lKm14
Most revealing, though, is this tweet by Calvin Harris' longtime collaborator, John Newman.
Newman mentions Swift by name when telling Harris "This is What You Came For" is "one of the best pop songs I have ever heard."
???? ?? ?????? ????? ?? ????? ????? ?????" this is what you come for " ??? ??? ?????? ??"Nils sjöberg" pic.twitter.com/UWjX84bpVc
- TS Arabic Updates™ (@TS1arabic) June 21, 2016While both Swift and Harris have admitted they collaborated on the track, it appears there is still "Bad Blood" between the two.
Harris has been tweeting up a passive aggressive storm since the news broke:
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 ??
- Calvin Harris (@CalvinHarris) July 13, 2016
I figure if you're happy in your new relationship you should focus on that instead of trying to tear your ex bf down for something to do
- Calvin Harris (@CalvinHarris) July 13, 2016
I know you're off tour and you need someone new to try and bury like Katy ETC but I'm not that guy, sorry. I won't allow it
- Calvin Harris (@CalvinHarris) July 13, 2016
Please focus on the positive aspects of YOUR life because you've earned a great one
- Calvin Harris (@CalvinHarris) July 13, 2016