The remaining 13 boy band hopefuls perform iconic songs from the greatest movies of our time. Then we follow three new bands as they learn new songs, new harmonies and continue to build new bonds with their bandmates. Each of the bands will perform, live, before architects Emma Bunton, Nick Carter and Timbaland, who will critique their performances and select the bottom two vocalists who are up for elimination. Audiences at home will then vote, live, and decide who will stay and who will go.