Hip-hop group RHYTHM POWER member Boi B joined the army today.

Boi B announced his enlistment through his Twitter account the day before, on April 14.

Boi B wrote: "Many of you know this because I announced this in our January concert, but I will join the army tomorrow. I'll stay healthy and come back with better and improved music".

He continued: "RHYTHM POWER will still continue to release their music without me. Please support my dear members on their musical journey!"

Boi B released his very first solo song "Samhwa High Speed" through his soundcloud for free in appreciation of fans.

Amoeba Culture stated: "Boi B worked on the solo track so he could release it before his enlistment. RHYTHM POWER will still remain active during Boi B's absence. We don't plan on adding any more members at this point".

Meanwhile, RHYTHM POWER is Amoeba Music's hip-hop group composed of members Boi B, Geegooin, and Hangzoo. The three high school friends previously performed under the name Radiation, changing their name after signing with Amoeba Music.