Céline Marie Claudette Dion is a Canadian singer. She is renowned for her powerful, technically skilled vocals, and remains the best-selling Canadian recording artist and one of the best-selling artists of all time with record sales of over 250 million worldwide.
She emerged as a teen star in her home country with a series of French-language albums during the 1980s. She first gained international recognition by winning both the 1982 Yamaha World Popular Song Festival and the 1988 Eurovision Song Contest, where she represented Switzerland. After learning to speak English, she signed on to Epic Records in the United States. In 1990, Dion released her debut English-language album, Unison, establishing herself as a viable pop artist in North America and other English-speaking areas of the world.