If you're still in mourning for the demise of Taylor Swift and Calvin Harris's seemingly rock solid relationship, you'll probably have glossed over those pics of her with new boyf Tom Hiddleston to instead wallow in all the good times Talvin once shared together.
But even though both Tay and Calvin are titans in the music industry, there's one thing that they never ended up sharing together - a musical collaboration. Well, an OFFICIAL collaboration, that is.
The latest rumour on the block is that Tay actually contributed some vocals to Calvin's Summer smash, 'This Is What You Came For', with a bunch of investigators pointing out similarities between those "oohs" in the track and her voice.
Although she's not credited on the tracks Wikipedia's page, several fans reckon co-writer Nils Sjöberg is actually an alias for Taylor Swift - which has all come as bit of a weird surprise for him.
Other fans reckon Taylor's input on the track went deliberately undocumented, as both she and Calvin always said a collaboration between the two of them was something that was never on the cards.
What do you lot reckon though? Let us know with a tweet @sugarscape or drop us a comment in the box below.