X factor contestant, Alexandra Burke, has revealed that she worries most about what Simon Cowell will say about her performance each week, despite being mentored by Cheryl Cole.

MSN quote Alex as saying: "I care about what Simon says the most because really and truly when he says something the public follows, they agree with him. And I’ve always agreed with him when he’s said something about an artist.

"It’s his power that scares me. He’s a sweet guy

but because of his power and what he can do to our lives he scares me.

"I’m not starstruck by any of the other judges but when I see Simon it’s so scary my heart jumps. The other day I saw him coming out of his car and walking into the studio and I literally jumped on him and said ‘Oh Simon this is the only chance I get to have you by myself’. He said I was crazy."