38. Shania Twain
Band Or Solo Artist?: Solo
Genre: Country, Pop
Greatest Hit: "You're Still The One" (1998)
Shania Twain is a groundbreaking artist for many reasons, one being her debut album Come On Over became the best-selling country album of all time. As if that's not enough, she's won five Grammys and was dubbed an Officer in the Order of Canada. She's referred to as "The Queen of Country Pop" and has sold more than 85 million albums worldwide, something Taylor Swift is coming for quickly.