Musicians react to hearing BE:FIRST for the very first time!

BE:FIRST / Mainstream & Masterplan -Music Video- | K-Cord Girls Reaction

Musicians react to hearing Alip_Ba_Ta for the very first time!!!

ATEEZ ARE BACK! | BE:FIRST X ATEEZ - 'Hush-Hush' -Music Video- REACTION

First Reaction to BE FIRST Masterplan (Japanese Pop)

Musicians react to hearing JO1 | 'WHERE DO WE GO' Official MV

普通に歌いながらこのダンスするの訳分からんのだけど… BE:FIRST 'Masterplan' CDTV Reaction!!

British Guy Reacts to BE:FIRST "Salvia" | Live BMSG FES’23 | REACTION!

This was a lot! 😅 My First Time EXO Killing Voice Reaction!

【BE:FIRST】の『Guilty』をほとんど知らないオジさんが初めて見たら、そのクオリティー高過ぎるリリックとダンスに脱帽して昇天した件を共有したい件。リアクション ビーファースト

The collab I needed - BE:FIRST X ATEEZ / Hush-Hush -Music Video - REACTION

BE:FIRST X ATEEZ / Hush-Hush -Music Video- REACTION | DG REACTS

FIRST TIME HEARING!!! BE:FIRST - Mainstream (REACTION) | METALHEADS React

Musicians react to hearing Alip_Ba_Ta - Pagebluk

(MJ?!)BE:FIRST / Guilty -Special Dance Performance-|REACTION

じっとりとした怖さを感じる… BE:FIRST / Masterplan -Music Video-【歌声分析】【リアクション】

DANCER REACTS TO BE:FIRST / Mainstream MUSIC VIDEO & DANCE PRACTICE

BE:FIRST / MASTERPLAN | LIVE PERFORMANCE | REACTION

BE:FIRST X ATEEZ / Hush-Hush -Music Video- & STAYC(스테이씨) 'Cheeky Icy Thang' MV - REACTION

BE:FIRST / Gifted. -Music Video- & -Orchestra ver.- REACTION & REVIEW | DG REACTS

BE:FIRST - 'Masterplan' MV REACTION!!