Simon Cowell's right hand woman is backing Cheryl Cole ahead of her first solo performance on The X Factor. Sinitta, who is helping Simon to mentor the over-25s, admits Cheryl is starting to feel the pressure. The judge and mentor of the boys will be singing her new single Fight For This Love on Sunday night's results show. Sinitta said: "She's nervous but the track's going well and everyone loves her. "She's at home so hopefully she'll feel more relaxed on the night."