Yoo Shi Ah, known by her stage name YooA, was born Yoo Yeon Joo in Seoul, South Korea (She legally changed her name before her debut). She is part of the eight-member girl group 'Oh My Girl' who debuted on April 20, 2015. In 'Oh My Girl', YooA is known as the face of the group, one of the lead vocalists, and one of the main dancers. She has an older brother named Yoo Jun Sun, who is a dancer and instructor at 1MILLION Dance Studio. In August 2016, YooA appeared on Mnet's Hit the Stage as U-Kwon (Block B)'s dance partner in episodes 3 and 4. The theme of their performance depicts the double life of house pets. YooA and U-Kwon achieved fourth place behind YooA's brother Junsun and his dance partner Hyoyeon. In November 2016, YooA along with GFriend's Eunha, Cosmic Girls's Cheng Xiao, Gugudan's Nayoung, and Momoland's Nancy formed a special project group named "Sunny Girls" for Inkigayo's Music Crush Project. "Sunny Girls" released their track titled "Taxi" produced by Duble Sidekick on November 27. They performed their song in special stages for episodes 891 and 892 of Inkigayo and in the SBS Gayo Daejeon on December 26. In April 2017, YooA collaborated with Junsun to release two choreography videos for 1MILLION Dance Studio featuring choreography by Junsun and music by Birdy. Watch drama online for free.