- Original Broadway Cast of Bye Bye Birdie
- Orenda Blu
- Ocelot
- Ooah
- On Camera
- Obinfaded
- Onofrio Conte
- Oliver Dettweiler
- Oh Brava Sura
- Onion Beets
- Oops 123
- Obviously High
- Oxlade Lyon
- Okay Girl Group
- Orquesta Sinfónica de Chapinero
- oranzz
- OG Prince feat. Big Baby Tape
- Osterni Nascimento
- Oyxxxxx.
- Oleg Poliakov
- Overscope
- Osvaldo Piro Ensamble Nueve
- Off Me Nut Crew
- Organo Digital Los Hermanos Solano
- Ohsea
- OTRMK2
- Ohare Garden
- ONLY SEE GREEN
- Oriatal
- Oldskool
- Oknos
- Oribu
- o.otaku
- Omega Johnson
- Oldhoomk
- Odile Bruckert
- Odion Dollar Dollar
- OB-Y
- One Four One
- OG 3Three Never Broke Again
- Oliver Boekhoorn
- o F F
- Oody
- Og Tha6
- Omfeel
- OsoYoPrince
- Onderond
- Orqa
- Odilon Basilio
- Olga Tanon and Cristian Castro
- Omega XDreams
- Officina Ayurvedica
- Onpoint TK
- OCboiO.C
- OthaSoul
- One Night at the Eagles
- over over
- Oferle
- ONEC
- Omega Trio
- Okly
- Omar Bakirov
- Ottiki
- Only The Family
- Other2Sides
- Ohana Bam
- Ob40
- Octantrion
- Otr only the real
- Olumide
- Oceanwave Signals
- One Diizy
- Offlien
- Oreoku、Tundrix
- Official_Xandi
- Optionica
- Our Landmark
- Orchestre de l'Opéra de Rome
- Oskar Yapım
- OG Freddie
- Omens Music
- Olsen Twinz
- OniSan
- of Asaph
- Ocean Waves For Sleeping
- Outer Ego
- Oroborus
- OneStarT
- Osker Wyld
- Ork Djodji Bend
