So this is really just an audio mash-up that was uploaded as a youtube video- probably just to let people downloaded it via youtube link. These two artists from two completely different song tonality and genres and whoever mixed this clearly has a lot of talent. When mixing two songs like this, it’s really hard to find a way to find a balance out the two melodies when one of the artists has the potential to have their part overpowered by the bass beat. I’d like to see if T.Swift can get some R&B songs under her belt at some point in her career. I really like the way the tempo towards the end just catches you off guard.