Cher, who is worldwide famous for her four-letter name, was under the impression that she was born Cherilyn Sarkisian until her 30s, when she discovered a mistake on her birth certificate.

My mother's name is Lynda, so how about Cherilyn?'" When the Grammy winner decided to change her legal name to Cher in the late 1970s, she dug out her birth certificate. "I was shocked to discover ...