Lee Seung Gi singing Because You're My Girl with Lee Sun HeeLee Seung Gi is on Love Letter, singing his first hit song "Because You're My Girl." His teacher and singer Lee Sun Hee comes on near the end to sing with him.
I love his voice!! Whether it's his old gruff, husky voice, or his newer and smoother voice (but still with some of that huskiness, and with the same power!).