Olly Murs made a mistake during the X Factor UK 2015 Live Shows (S12E20) when he thought that Monica Michael was supposed to be eliminated. 2:46 Olly .brTonight on Alan Carr: Chatty Man, Olly Murs talks about the elephant in the room, when he made a huge mistake live on the X Factor during deadlock. Dont .brVisit the official site: The Judges forced the vote to Deadlock, with the public vote revealing that Monica should be the next contestant to .