{=[ONF - ON/OFF] Debut Stage - M COUNTDOWN 170803 EP.535|publisher=Akun YouTube Mnet K-POP|language=ko|accessdate=12 Agustus 2020}}</ref>
{{ pada bulan Agustus tahun 2019.<ref name="laun">{{Cite web|url=https://www.soompi.com/article/1347597wpp/wm-entertainment-announces-launs-departure-from-onf-and-contract-termination-due-to-personal-reasons|title=WM Entertainment Announces Laun’s Departure From ONF And Contract Termination Due To Personal Reasons|work=soompi.com|language=en|date=23 Agustus 2019|accessdate=12 Agustus 2020}}</ref> ONF melakukan penampilan debutnya di acara ''M Countdown'' dengan membawakan lagu ''ON/OFF'' pada tanggal 3 Agustus 2017.<ref name="debut_stage">{{Cite web|url=https://www.youtube.com/watch?v=KXeFIgrckLs|title=[ONF - ON/OFF] Debut Stage - M COUNTDOWN 170803 EP.535|publisher=Akun YouTube Mnet K-POP|language=ko|accessdate=12 Agustus 2020}}</ref>
