With this week's X Factor theme confirmed as Rock Week, the song choices for Mary, Wagner, Cher and Matt have been revealed. Rock Week sees each of the remaining seven contestants singing two songs, one up-tempo and one down-tempo, as they fight for their place in the competition. So far, according to reports Wagner will be singing Radiohead's Creep as one of his song choices, Cher will be hoping to impress with Aerosmith's Walk This Way as one of her choices and Matt will be singing the Guns N'Roses classic Welcome To The Jungle. Speaking on Matt Edmondson's F Factor, Matt said: "Rock week is harder than it sounds", while Rebecca said: "Getting to do more of an unbeat one. It's good to mix it up a bit". While One Direction said: "Both the songs are completely different. Every performance from now on has to be wicked"; while Katie Waissel said: "There's so much more to rock than people think. I just really want to get it right". Mary Byrne's songs have been revealed as All I Want Is You by U2 and The Pretenders' Brass In Pocket, however, the Scottish singer is said to be suffering from a throat bug. The Sun reported that she saw a doctor on Thursday after being unable to rehearse because of the strain on her vocal cords. A source said: "Mary isn't well and needs proper rest." Sunday night's results show is set to be another pop-filled extravaganza with performances from new Brit band The Wanted, US teen sensation Justin Bieber and a world-exclusive performance of guest judge Nicole Scherzinger's new single.
