I LOOOOVE when stuff like this happens. In the music biz, its not uncommon for several artists to record a smash song and then decide that it wasn't for them, then to hand it off to someone else for any variety of reasons. Well today a snippet leaked of an engineer working on the SMASSHHH single Closer by the Chainsmokers and Halsey, but he had Camila Cabello singing instead of Halsey! I wonder what the finished product could have sounded like? Anyway, check out the studio clip below:

(Photo: Getty Images)