Yoo Chan-wook (유찬욱) professionally known as BE’O is a South Korean rapper and songwriter under FameUs and BPM Entertainment.

He released his debut album, Monster, in 2020 and first gathered attention with his participation in the Mnet rap competition Show Me the Money 10 in 2021, where he finished in 3rd place, with his songs “BREATHE” and “Limousine”, produced on the program, reaching #1 on domestic Korean charts.

Since his debut, he peaked at #1 on the Korean Charts and Gaon Digital Charts, with the single “Counting Stars”. He has also participated in the show High School Rapper 3.

He has described his goal of making music as “music that makes people who do not know me at all imagine me.”