For his newly released fifth album "Tonight," Lee Seung-gi decided to rock out whenever the mood struck and adopt a more experimental approach with his vocal range.

"Rather than sticking to traditional ballads, I tried to make more of a rock band-style sound and melodies," the 24-year-old singer and actor said at a press event in Seongsu-dong, Seoul on Wednesday. "I tried to use different singing styles depending on the mood of a song."

The album, Lee's first in two years, required the singer to re-train his vocal chords. He also participated in writing the music and lyrics.

Source: English Chosun