Sky Tonia Ferreira was born on July 8, 1992 in Venice Beach, Los Angeles. She is of Native American, Portuguese, and Brazilian descent. At age thirteen, she started taking opera lessons to refine her singing voice. She spent the next few years maintaining a Myspace profile where she uploaded various demos of self-written tracks. Shortly before her fifteenth birthday, she caught the attention of Swedish production duo Bloodshy & Avant by contacting them through the social networking site. The producers were impressed and subsequently decided to work with her.