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

BE:FIRST - Boom Boom Back + Smile Again + Mainstream + MasterPlan Music Video (Reaction)

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

4 HITS! - Blackswan - Roll Up Reaction (MV & EP)

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

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

Them Dance Moves!? 😯😏 | BE:FIRST / Boom Boom Back + Scream -Music Video- @BEFIRSTOfficial Reaction

BMSG MV REACTION!! | International BESTY's react to BMSG SKY, MARINE, & GAIA 2024 MVs

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

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

BE:FIRST Live Performances “ Mainstream” + “Boom Boom Back” + “Gifted” REACTION

BMSG FES '23 REACTION!! | International BESTY's react to 'BMSG EAST', 'BMSG WEST', & 'EAST vs WEST'

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

BE:FIRST X ATEEZ 'Hush-Hush' | MV REACTION

[THE FIRST- BMSG Audition 2021 ] #2-2/ 2nd Round Reaction

REACTION to BE:FIRST - 'Smile Again' | THE FIRST TAKE + 'Royal (ATEEZ X BE:FIRST)' + 'Spin!'

BE:FIRST REACTION!! | 'Boom Boom Back', 'Mainstream', & 'Masterplan' Dance Performances

BE:FIRST X ATEEZ / Hush-Hush -Music Video- REACTION!!!

BE:FIRST - Bye-Good-Bye And Smile Again / THE FIRST TAKE (REACTION)

BE:FIRST X ATEEZ | Hush-Hush MV | REACTION! | UGGHH THE VISUALS