By the time she was 18, pop singer and songwriter Meghan Trainor had self-released three albums and landed a publishing deal for her writing. In 2014, she watched her first single for major-label Epic -- "All About That Bass," a dance-friendly paean to body positivity -- climb the charts soon after its pastel-colored video became an online sensation. It eventually reached the pole position not only in the U.S. but throughout the world. The subsequent album Title promptly hit number one in multiple countries and featured two additional Top Ten pop hits. Months after she accepted the Grammy Award for Best New Artist, Trainor released Thank You, led by the number three hit "No." ~ Mark Deming