Tension hung in the air, thicker and more pronounced than Demi Lovato's '80s-era eyebrows, on tonight's X Factor Top 12 results show. Even Khloe Kardashian could feel it: "Live on stage we've got a sensational performance from the incredible Taylor Swift!" she declared, eyes burning with ennui (or was she merely distracted by a shiny object dangling in the distance?).
