Live Show 4 The X Factor : Season 11 Episode 21

The remaining acts get into the Halloween spirit for Fright Night, a show that's almost certain to include Michael Jackson's Thriller, but also a few unexpected song choices to keep things interesting. It's now the fourth week of the live studio rounds and Simon Cowell has decided to shake things up with a shock twist - the act with the lowest number of votes will be revealed in this show, and they will be eliminated straight away.