NMIXX took A Cappella to another level...AGAIN. | Vocal Coach Reaction

We got another vocal goodness with NMIXX(엔믹스) "Fe3O4: STICK OUT" A Cappella Highlight Medley! PATREON:   / katriinkamusic   SINGING LESSONS: https://www.katriinka.com/ TIKTOK:   / katriinkattv   INSTAGRAM:   / katriinkamusic   #NMIXX #Fe3O4_STICKOUT #별별별 ⁠#vocalcoach #katriinka #nmixxreaction