Dermot O'Leary hosts the semi-finals. The four remaining act must perform two songs each, and it will be up to them to really sing their hearts out if they are to be in with a chance of making it to next week's final.
Dermot O'Leary hosts the semi-finals. The four remaining act must perform two songs each, and it will be up to them to really sing their hearts out if they are to be in with a chance of making it to next week's final.
