Taylor Swift shocked fans late last month after she ditched her old looks in favour of a darker image.
Her new song 'Look What You Made Me Do', has Taylor portrayed in a way we've never seen her before.
Her latest release has been met with mixed reviews, but fans seem to love this recent mash-up! Someone has taken Taylor's new song and mixed it with Britney Spears' song 'Toxic'.
You can hear the mash-up above and the original songs below...