BEAST members Yang Yoseob and Yong Junhyung performed a charismatic and powerful performance.

Today on KBS "Music Bank," Yang Yoseob performed his solo title song, "Caffeine." Member Yong Junhyung also made an appearance for the rap as well.

Both members wore sleek suits showing off their fashion senses.

The two members' voices matched well as they performed a perfect stage.

The song features Yang Yoseob's melodical voice and Yong Junhyung's producing skills.