If you think that being the sexiest woman in the world would make Cheryl Cole to be a decent young lady, you are mistaking! She just does her best to prove us she really deserve the first place. And what better way to do it then to show us her perfectly pert derriere on stage?In the pictures, you can see that she was wearing a way too short skirt during the Girls Aloud sold-out Out of Control tour to Sheffield.She also gave us a look of her