9muses Former members: Jaekyung Stage Name: Jaekyung (재경) Real Name: Jung Seo-young (정서영) Position: Vocalist Birthday: September 19, 1987 Zodiac Sign: Virgo Height: 173 cm (5’8″) Blood Type: O Jaekyung facts: – She can play the flute. – Education: Dae Kyung College – In October, 2010, after “No playboy” (their debut song) promotions, Jaekyung withdrew … Continue reading 9muses Former Members