First Time Hearing BE:FIRST "Mainstream" REACTION

British Guy Reacts to BE:FIRST "Boom Boom Back" | Live from BE:FIRST 1st One Man Tour | REACTION!

First Time Hearing BE:FIRST "Smile Again" | THE FIRST TAKE | REACTION!

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

Metal Vocalist First Time Reaction - BE:FIRST / Mainstream -Music Video-

BE:FIRST - 'Mainstream' Dance Practice REACTION!!

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

BE:FIRST / Mainstream -Music Video- Reaction... THEY ARE SO CREATIVE!!

BE;FIRSTを全く知らない男達がMainStreamを見てみた結果WWWWWWW

BE:FIRST- Grow Up Apartment Band Ver +BMSG ALLSTARS- New Chapter + edhiii boi, SOTA, Novel Core- 118

British Guy Reacts to BE:FIRST "Scream" | Live MTV Jammin | REACTION!

FIRST TIME REACTING TO BE:FIRST / Mainstream -Music Video-

【BE:FIRST】もしかして彼らにできない表現ってない！？ プロダンサーと観る Guilty Special Dance Performance リアクション&解説動画【reaction】

BE:FIRST REACTION!! | 'Smile Again', 'Blissful', & 'Guilty' Dance Performances

FIRST TIME EVER REACTION TO BE:FIRST (ビーファースト) - Mainstream M/V & Dance Performance |🧊 OOOOOOOOH!

British Guy Reacts to BE:FIRST "Gifted" | Orchestra Version | REACTION!

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

FIRST EVER TIME HEARING THEM! BE:FIRST / Mainstream -Music Video- (REACTION!!)

REACTION to BE:FIRST - 'Smile Again' + 'Hush-Hush' + 'Softly (歌詞)'

【ダンサーの反応】BE:FIRST - Guilty Special Dance Performance 「ビーファがまじで最近覚醒している件www」