'X Factor' confirms American Anthems theme

This week's X Factor will have an American Anthems theme, it has been confirmed.

Previously, the Daily Star claimed that the programme would be bringing back Rock Week, but vocal coach Yvie Burnett has clarified the details of Saturday's show on the official website's F Factor video blog.

"You're not going to get away with being mediocre this week," said Burnett. "You're going to have to be outstanding."

Treyc Cohen is rumoured to be tackling Aerosmith's 'I Don't Want To Miss A Thing', while Mary Byrne is expected to sing 'There You'll Be'.

Teasing her performance, Cher Lloyd said: "It's going to be hard to not be compared to the original artist, I need to sound completely different... Cher's version."

Meanwhile, Aiden Grimshaw promised that his routine would be "a bit more happy" after criticism that he had been too intense in recent performances.