BE:FIRST- Mainstream -Music Video | REACTION

【衝撃】久々にBE:FIRST見たら進化しすぎてて流石にビビった🫨 BE:FIRST/Mainstream

BE:FIRST / Mainstream -Music Video- REACTION!!!!

BE:FIRST / Mainstream -Music Video- REACTION (ENG/JAP SUBS)

Musicians react to hearing Alip_Ba_Ta - Sweet Child O' Mine - Guns n' Roses (fingerstyle cover)

Reacting to BINI 'Karera' Official Music Video

BE:FIRST / Mainstream -Music Video- REACTION

BE:FIRST / Move On -Live from “FIRST” One Man Show -We All Gifted.- | LIVE REACTION

BE:FIRST（ビーファースト）「Mainstream」を世界一のプロダンサーがダンス解説!?

Jeff Satur - Why Don't You Stay (WorldTour Ver.) | MV REACTION

【BE:FIRST】衝撃の新曲Mainstreamを完全初見リアクション！

BE:FIRST / Mainstream -Official Audio- REACTION

[REACTION] BE:FIRST - 'Mainstream' (MV + Dance Practice) | This is exciting.

BE:FIRST Mainstream MV I RADIO PERSONALITY REACTS

First time hearing Gabriel Henrique!! Earth Song (Michael Jackson Cover) REACTION!

プロがBE:FIRSTの『Mainstream』を見ての反応

BE:FIRST - Scream @SUMMER SONIC 2022 REACTION | 凄いとしか言いようがない

BE:FIRST - 'Kick Start + Shining One' Buzz Rhythm Live REACTION!!

Choreographer Reacts to BE:FIRST - MAINSTREAM (DANCE PRACTICE) First Time Reaction!

BE:FIRST "Mainstream" | Mireia Estefano Reaction Video

【BE:FIRST】ちょっと待って！？あなたたち世界を変えるつもり！！？！？ BE:FIRST / Mainstream -Music Video- REACTION !