A major secret is out and Taylor Swift is responsible!

The "Bad Blood" singer took to Instagram yesterday to wish her friend, Zayn Malik, a happy birthday. That all seems pretty normal considering they've been working together for the past few months on a duet for the movie Fifty Shades Darker. But, it was the photo she used that really got heads turning!

There's been speculation for weeks about whether or not a music video would follow their collaboration. Not only that but would Zayn and Taylor actually star in this potential video together? There were reports recently that these two actually trashed a hotel while filming but that was never confirmed.

A hotel room, Zayn, Taylor and their sultry song? What could REALLY have gone down?! All fans know what happened in Zayn's music video for his track "Pillowtalk". A lot of Gigi Hadid and a lot of kissing. Would this video take the same direction?!

We can't imagine Gigi wanting her bestie kissing her boyfriend and we can't imagine Taylor wanting to kiss her bestie's boyfriend either. Hmmm…

Regardless of what kind of relationship Taylor and Zayn would have in the video, one thing is for sure and that is that they will definitely be starring in it together! Taylor actually confirmed the news when she wrote, "HAPPY Z DAY."

Whoa! This looks like it's going to be epic. Taylor and Zayn are true artists which means they will do anything to make sure the work they produce is nothing less than perfect. This will be the first time that these two will be on screen together and we're hoping they give the world something we never expected!

The song was made for a pretty scandalous movie so having some intimate scenes in there wouldn't be the craziest thing. Only time will tell if Taylor and Zayn actually made the move to cross that line.

Until then, we'll just have to look at this still photo and use our imaginations!

Are you excited for the video? Let us know in the comments below!