'X Factor' Diana 'behaves like a diva'

Tabloid reports have claimed that X Factor contestant Diana Vickers behaves like a diva backstage on the talent show.

According to The Sun, the 17-year-old's demanding behaviour and "attitude" have upset staff.

"Diana comes across as really angelic and sweet on the show, but she makes a bit of a fuss," said a source.

"Most people behind the scenes think she needs a bit of a kick up the backside. She doesn't like being filmed before she has her makeup done and the constant cameras in the house that the finalists share."

The show's workers apparently put up with her actions because producers are so impressed by her musical talents.

Vickers's performance of U2's 'With Or Without You' was praised by all the judges on last week's live show, with Louis Walsh describing her performance as "a breath of fresh air".