| Origin | Seoul, South Korea |
| Debut | March 20, 2014 |
| Disbanded | 2014 |
| Number of Members | 5 |
| Members | Ray Songyi Betty Janet Seul-Gi Kiryun |
| Oldest Member | Kiryun |
| Youngest Member (Maknae) | Seul-Gi |
| Tallest Member | Janet |
| Shortest Member | Ray |
Billion Former Members Profile
Ray
| Full Name | Sung Bora |
| Birthday | October 27, 1991 |
| Birthplace | Pyeongtaek, South Korea |
| Age | 34 years and 8 months old |
| Height | 5 feet 3¾ inches (162 cm) |
| Weight | 106 lbs (48 kg) |
| Zodiac Sign | Scorpio |
| Position | Leader, Vocalist, Rapper |
| booora1027 |
Songyi
| Full Name | Park Songyi |
| Birthday | November 6, 1991 |
| Birthplace | Daejeon, South Korea |
| Age | 34 years and 7 months old |
| Height | 5 feet 4 inches (163 cm) |
| Weight | 99 lbs (45 kg) |
| Zodiac Sign | Scorpio |
| Position | Main Vocalist |
| paksong2 |
Betty
| Full Name | Go Eunji |
| Birthday | February 7, 1994 |
| Birthplace | Seoul, South Korea |
| Age | 32 years and 4 months old |
| Height | 5 feet 3¾ inches (162 cm) |
| Weight | 94 lbs (43 kg) |
| Zodiac Sign | Aquarius |
| Position | Main Vocalist |
| mookeunji27 |
Janet
| Full Name | Cho Minjung |
| Birthday | September 1, 1994 |
| Birthplace | Seoul, South Korea |
| Age | 31 years and 9 months old |
| Height | 5 feet 9 inches (174 cm) |
| Weight | 117 lbs (53 kg) |
| Zodiac Sign | Virgo |
| Position | Lead Vocalist |
| janet_minjung |
Seul-Gi
| Full Name | Na Seulgi |
| Birthday | June 23, 1995 |
| Birthplace | Gangwon Province, South Korea |
| Age | 31 years old |
| Height | 5 feet 5 inches (165 cm) |
| Weight | 94 lbs (43 kg) |
| Zodiac Sign | Cancer |
| Position | Vocalist, Maknae |
| s2sseuls2 |
Kiryun
| Full Name | Kim Eunseok |
| Birthday | October 18, 1989 |
| Birthplace | Seoul, South Korea |
| Age | 36 years and 8 months old |
| Height | 5 feet 6 inches (167 cm) |
| Weight | 108 lbs (48.89 kg) |
| Zodiac Sign | Libra |
| Position | Lead Vocalist, Dancer |
| bora.k_ |
Member Ages: Oldest to Youngest
| Member | Birthday | Age |
|---|---|---|
| Kiryun | October 18, 1989 | 36 years, 8 months, 10 days old |
| Ray | October 27, 1991 | 34 years, 8 months, 1 day old |
| Songyi | November 6, 1991 | 34 years, 7 months, 22 days old |
| Betty | February 7, 1994 | 32 years, 4 months, 21 days old |
| Janet | September 1, 1994 | 31 years, 9 months, 27 days old |
| Seul-Gi | June 23, 1995 | 31 years, 5 days old |
FAQs
How many members are in Billion?
Billion is a 5-member K-pop girl group. The group consists of Ray, Songyi, Betty, Janet, Seul-Gi, and Kiryun.
When did Billion debut?
Billion debuted on March 20, 2014, with their song Dancing Alone.
