The UK's favourite singing competition kicks off its fourth weekend of live shows as the remaining contestants sing their hearts out. Dermot O'Leary hosts as judges Simon Cowell, Nicole Scherzinger, Sharon Osbourne and Louis Walsh take their seats for more amazing performances from each of their categories. Another big name guest also performs live.

The nation's favourite singing show continues into its semi-final round as the remaining contestants take to the stage to perform for the judges and audience at home, with the hope of making it into next week's final.