Riki is member of a Jpop group Ballistik Boyz (BBZ) from Exile Tribe, managed by LDH.
He was selected to join the group after being one of the finalists from the 2017 Vocal Battle Audition 5 (Rap category). The group made their official debut on May 22, 2019.
He started dancing as a child at his parent's studio called Beat Claps Dance Studio.. Later he joined LDH's dance school EXPG in Fukuoka. For a period of time he studied abroad in NYC to improve his dancing skills and learn English.
His dancing talent led him to join the EXPG special dance project Crasher Kidz where they used to perform in the streets. (fellow BBZ bandmates Ryusei and Ryuta were also part of this project).
He's skilled in dancing and rapping, has won many dance competitions and can also speak Chinese Mandarin. Riki Matsui(2000년생, Fukuoka Prefecture, Japan) 는 배우로, 딥 리벤지 -얼굴을 버린 가정부-, New School Breakin, 복면 D 등에 출연했다. 특히 2026년에는 딥 리벤지 -얼굴을 버린 가정부-에도 참여해서 활동중이다. (오뜨랑에서 실시간으로 번역된 한글 프로필도 확인할 수 있어요) 2026년 딥 리벤지 -얼굴을 버린 가정부-에 출연했다. 2022년 New School Breakin에 출연했다. 2022년 복면 D에서 Maeda Chikara 역을 맡았다.