Seo In Young (서인영) is a K-pop singer, known for being part of the group Jewelry. She released her solo album entitled Elly Is So Hot (the name "Elly" is a new nick name that Seo created for herself) on February 26, 2007. Known as the sexy dancer in the group, Seo has stated that she wanted to move away from her strong dance image and become a softer, more sensual entertainer.

D.O.B.: Sept 3rd, 1984

Jewelry Info: 

Park Jung Ah (박정아、朴貞兒) - lead vocals(debut solo)

Seo In Young (서인영、徐寅榮) - music(debut solo)

Ha Joo Yun (하주연、河周妍) - rapper

Kim Eun Jung (김은정、金恩庭) - main vocals