Lovelyz' Ryu Soo Jung is the voice behind "Lie After Lie" for the 'Lies of Lies' OST.

In the music video, Ji Eun Soo (played by Lee Yoo Ri) has a tearful meeting with her daughter, and she slowly begins forming a relationship with her daughter's adoptive father Kang Ji Min (Yeon Jung Hoon). "Lie After Lie" is about denying your feelings for someone because of past hurts, and it serves as Ji Eun Soo's theme song in the drama.

Listen to Ryu Soo Jung's "Lie After Lie" above! Have you been watching 'Lies of Lies'?