BE:FIRST "Boom Boom Back" (Official Music Video) | Couples Reaction!

[REACTION] FINALLY!!!!!!! Introduction to BEFIRST

BE:FIRST / Mainstream & Masterplan -Music Video- | REACTION

BE:FIRST REACTION!! | BMSGFES '23 'Boom Boom Back' & 'Salvia' Stages

BE:FIRST - Shining One + Gifted + Bye-Good-Bye Music Video || First Time Reaction

BE:FIRST "Mainstream" (Official Music Video) | Couples Reaction!

【神曲】ヤバい過去1好きだ... 全てがハイセンスな最高のR&B！！ShowMinorSavage / Ocean (Prod. MONJOE) -Music Video-【歌声分析】Reaction

BE:FIRST X ATEEZ - REACCION A "HUSH - HUSH" ( MADRE MÍA QUE GOZADA!)

Dreamcatcher(드림캐쳐) 10th Mini Album [VirtuouS] REACTION | DG REACTS

[REACTION] BE:FIRST - Smile Again / THE FIRST TAKE

FIRST TIME REACTING TO BE:FIRST - 'Mainstream' | -Music Video-

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

BE:FIRST BOOM BOOM BACK REACTION

Reaction | EPEX(이펙스) - "UNIVERSE" & "MY GIRL"

BE:FIRST / Scream | SINGER REACTION & ANALYSIS

𝐇𝐮𝐬𝐡-𝐇𝐮𝐬𝐡 | 𝐄𝐎𝐍𝐍𝐈𝟖𝟖 𝐫𝐞𝐚𝐜𝐭𝐬 𝐭𝐨 𝐁𝐄:𝐅𝐈𝐑𝐒𝐓 𝐗 𝐀𝐓𝐄𝐄𝐙

このラフさがたまらない！夏曲最高すぎる！ MAZZEL / Seaside Story -Music Video-【歌声分析】【リアクション】

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

BE:FIRST - Betrayal Game + Scream + Message Music Video || First Time Reaction

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

BE:FIRST x ATEEZ | Hush-Hush MV REACTION