The acts have endured the usual 24-hour wait to find out whether their performances have impressed the public, and now Dermot O'Leary reveals the names of those who have made it through to next week's show. The two least popular (I'm going to hazard a guess and say Gary's remaining two acts: the Chimney Sweep and Shakin' Stevens) then have to sing for survival, and one of them must leave. With a performance by JLS, and Labrinth's new single Beneath Your Beautiful (what?), featuring Emeli Sande.