한 D:elta D:elta (델타) was a South Korean Male Artist. He started in group AlphaBAT. He retired in 2016. Read All General Information International Stage Name : D:elta Domestic Stage Name : Pronounce 델타 Full Name : Choi Yeonsoo Pronounce Date of Birth : 1991-05-17 (age 35) Zodiac : Taurus Country of Birth : South Korea Related Artists : AlphaBAT - Vocal Artist retired : 2016 Original group : AlphaBAT (No longer a member) Images No images yet