With Mel B not signing up for another series, both judges were replaced by Nick Grimshaw and Rita Ora. Generally in certain years, beginning with the third sequence, as a result of an increased number of acts in the live shows or lowered weeks, a double elimination is featured where the three acts who were the bottom ranked in the public vote are revealed, byondscape with the act who finished final in the general public vote is immediately eliminated with the opposite two acts in the underside two perform in the ultimate showdown for the judges' votes.