Lee Ji Su

The Pi Song

Lee Ji Su

Do You Want Me To Teach Math?

Lee Ji Su, Inhye Kang

We Decided To Call This ′Courage′

Lee Ji Su, Nam Ye Chan

Q.E.D. (Pi Song Var.2)

Lee Ji Su, Nam Ye Chan

Han Ji-Woo & 1%

Lee Ji Su, Nam Ye Chan

Lee Hak-Seong′s Step

Lee Ji Su

Take a Break

Lee Ji Su

B103

Lee Ji Su, Nam Ye Chan

Victory of Truth

Lee Ji Su

Rule of Three Times

Lee Ji Su, Inhye Kang

Impossible Triangle

Lee Ji Su, Inhye Kang

1 Month

Lee Ji Su

It′s Over

Lee Ji Su

Lonely B103

Lee Ji Su

I′m Sorry Han Ji-Woo (Pi Song Var.1)

Lee Ji Su

Thank You

Lee Ji Su