Sophie Plumb news

Sophie Plumb X Factor 2015: Contestants in the six chair challenge we've not yet seen on telly

Around 75 acts are left in The X Factor as we head for the six chair challenge but we've not met all of them yet.

X Factor judges X Factor 2015: Eight auditions left on the cutting room floor

Not every one of the 150 acts who made it through to the X Factor 2015 bootcamp saw their audition on the air - here are eight acts whose performances...