Singer Lee Seung Gi has been conquering music charts with his song, "Looking Back."

As of today, Lee Seung Gi has been ranked number 1 for 4 weeks straight on various music charts, including Melon, Mnet and Olleh Music.

"Looking Back" was released on November 22, and it's the first time that Lee Seung Gi worked together with indie singer Epitone Project.

The song is about the desperate heart of wanting to go back, and Lee Seung Gi's sweet voice matched the gentle melody well.

Photo Credit: OSEN