And to the above comments, cheryl didnt help cher because she wanted to do her a favor, she was helping her because she was getting PAID to do so.

We all know the producers are the ones who pick the acts and Cher's success comes from her OWN hardwork not the calculated decision of a few well paid and well dressed men.
Cheryls pissed because attention has been drawn to her lack of talent, and because she cant prove she IS talented she'll always lose.