Singer Katy Perry posted on her twitter account that she had to cancel two shows, one in Chicago and one in Illinois due to food poisoning. But she said she would be back to do the shows. I wonder, when stars say they get food poisoning, are they lying or no? Its like that excuse a lot of them use, dehydration.. they get it like colds! Ive never known anybody that got dehydration lol. Thoughts?