O My Jewel Member Profile: O My Jewel Facts O My Jewel (오마주) was a 3-member South Korean girl group under Acoustic Company and Frientree Entertainment. The group consisted of Sanha, SEO Sarang, and Sophia. Crystal left on December 18th, 2017 due to health issues. They debuted on November 17th, 2017 with the song ‘Tambourine’. … Continue reading O My Jewel Profile and Facts