When she was in high school Lim participated in a song contest for teens held by the Seoul government and won the grand prize.

The experience of competing in the song contest and winning the top prize led Lim to enter college to study popular music.

Even before she had her official debut, Lim held countless street performances on her own which led to the creation of her multiple fan clubs.

[citation needed] Her third album, "Before I Go, J-Lim", made headlines for featuring Big Boi from Outkast who also appeared in the music video.

From July 12 to October 3, Lim Jeong Hee performed as 'Jung Hankyung', a charming girl who's caught between two different guys for her love.