The Girls Aloud are apparently jealous of bandmate Cheryl Cole over her appointment as the new judge on 'X Factor'.
One of those sources told Heat: "The other girls are very put out that Cheryl has landed the judging role. They knew she really wanted it, but some of them found the news hard to handle, especially Nadine [Coyle]. At the end of the day, all the girls are talented, but Nadine has got the best voice and as it's a singing contest she should be the one for the job".
Another source says this: "Sarah [Harding] and Cheryl both wanted to get into TV, but it seems Cheryl is moving closer to that before her. Sarah booked a magazine deal with her boyfriend Tom (Crane) when Ashley and Cheryl were all over the press and now she's really envious of Cheryl's X Factor deal. It's getting really competitive. Sarah always thought that she'd be the TV girl in the group, not Cheryl".