Song Jieun 송지은 is the maknae and main vocal of Secret.
Jieun 지은 was born on Saturday, May 5, 1990 in Seoul. She's younger than Secret's oldest member, Hyosung, by 6 months and 22 days.
Like fellow member Hana, she was born in the Year of the Horse. She's a Taurus and her blood type is O.
She's 160 cm or 5'3" tall, the same height as Hyosung. They're taller than Hana by 3 cm.
She's an only child. She plays the piano.
She auditioned for JYPE and was set to debut in a group with Sistar's Hyorin and Bestie's U-Ji, but it didn't work out, and she moved on to debut in Secret.