Mariah Carey has one problem; her challenge is the porn star, Mary Carey. The Grammy-winning pop star Mariah Carey is trying to block porn star-turned politician Mary Carey from trade marking her similar-sounding stage name. Mariah says that fans could get the two performers confused. Certainly this is a big issue since there are similarities between them. Mariah Carey has assigned her lawyer to sue Mary, if she doesn’t stop her intention. But the adult film actress, whose real name is Mary Cook, mentioned on Friday that she won’t be intimidated by the international superstar and will press continue with her trademark application. Here are pictures of both of them.