CNBLUE's new song, "I'm Sorry" has taken the over the charts.

Today, CNBLUE's new song ranked number 1 on various music charts.

This song is a part of their new album and is an original song written by leader Jung Yong Hwa.

Although they have written many original songs, this is the first time they are using their self-composed song as a title song.

They will be making a comeback stage on January 18 on KBS "Music Bank."

This article has been revised to reflect the following correction:

Correction: January 14, 2013

An article on Monday stated that this was CNBLUE's first original song, however, they have actually written many original songs. This is just the first time they are using their self-composed songs as a title song.