【衝撃】これがJ-POP？！BE:FIRST 'Mainstream' を初めて見た外国人の反応

BESTYs, we’re back with another reaction and this time we’re diving into BE’s "MAINSTREAM"! This track is filled with energy, charisma, and incredible choreography that has us completely hooked. From the slick visuals to the flawless execution, BE continues to push boundaries in the J-pop scene, and we can’t wait to break it all down for you. #befirst #mainstream #jpop #jpopメドレー #jpopmusic #jpop으로배우는일본어 #jpop最新曲ランキング邦楽2021 #BF_Mainstream #bmsg #BME #BESTY #BEFIRSTXBESTY #junon #leo #ryoki #Sota #manato #shunto #ryuhei Join us as we react to every moment, and let us know in the comments which part of the "MAINSTREAM" MV blew you away! Don’t forget to like, comment, and subscribe for more BE and J-pop reactions! Join our Backstabbers Discord in the link here :   / discord   Chapters 00:00 - 10:18 Intro 10:19 - 18:58 Reaction 18:59 Commentary and Outro