Jang became well known after she finished third in the South Korean reality television series Superstar K 2 in 2010.

[citation needed] She was an outstanding student but chose to drop out of high school to pursue a music career.

[citation needed] Her original first name was So-min, but she changed her name to Jaein (which means "talented person" in Korean).

After entering Howon University (music major), Jaein performed regularly in several live clubs in Hongdae.

"The Place" Jaein Jang "2 Different Tears" "Cinderella" Wonder Girls Seo In-Young