Demi Lovato on Working With Simon Cowell: 'He's a Bit of an A--hole'

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Demi Lovato, who won the MTV Video Music Award prize for best video with a message, didnt hold back when reporters backstage asked her how it was to work with Simon Cowell on The X Factor.

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Hes a bit of an a--hole, the petite singer said before quickly adding, Im totally kidding!

We have so much fun together, she added. I love him so much. Hes amazing.

Lovato joins fellow pop singer Britney Spears at the judges table for the first time on The X Factor. The show will premiere on Wednesday, Sept. 12 on Fox.

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We go back and forth, but behind the stage, we love each other, Lovato added about her working relationship with Cowell.

Lovato, who performed her song Give Your Heart a Break during the MTV VMA pre-show, won the award for best video with a message for her song, Skyscraper.

Backstage, the singer revealed that the first album she ever purchased was a Britney Spears record. Lovato had only nice words for the woman she idolized grow! ing up, calling it a dream-come-true.