9 Natalia Oreiro
4 Oreja
9 La Oreja de Van Gogh
6 Raúl Orellana
7 Stephen Oremus
5 Foreign Oren
8 オレスカバンド
6 Øresund Space Collective
9 Carl Orff
6 Martin Orford
3 Org Lounge
6 Organ
7 Organ Donors
1 Organ Grinda
8 The Organ
7 Organic Audio
6 Organic Despair
6 Organic Grooves
5 Organic Noise
5 Organic Stereo
6 organic.
4 Organisation
2 Organised Chaos
6 Organiseret Riminalitet
8 Organismen
4 The Organization
9 Organized Konfusion
1 Organized Noize Atlanta hip-hop production group
7 Organized Rhyme
6 OTSU
8 Organum
7 Оргия праведников
8 Orgone
4 Orgue Electronique
9 Orgy
7 Orianthi
7 The Orichalcon
3 Orichalcum
2 Orien
2 オリエンス
6 Orient Express Moving Shnorers
7 Orient Expressions
5 l'Orient Imaginaire
3 Mohammed El-Bakkar and His Oriental Ensemble
1 Oriental Space
4 The Oriëntalist
1 Orientalists
2 Orientation
4 or-if-is
9 ORIGA
5 Origami Galaktika
4 Origamibiro
2 Origamimetic
4 Origen
5 Origene
7 Origin UK trance duo
9 Origin Kansas metal band
9 Origin Unknown UK Drum & Bass producers Andy C & Ant Miles
7 The Origin
2 Os Originais do Samba
7 Original Cast This is a real artist. Do NOT put soundtracks here.
6 The Original Caste
1 Original Cedar
6 Original Charlie Parker Quintet
1 Original Charlie Parker Quintet With J.J. Johnson
5 The Original Comets
2 Die Original Deutschmacher
9 Original Dixieland Jazz Band
6 Original Dixieland-Stompers
5 Original Flavor
1 The Original Memphis Five
1 Original Silence
3 Original Sin
6 Original Sinners
5 Original U.S.A. Gospel Choir
9 The Original
6 Originální pražský synkopický orchestr
9 The Originals motown group
1 Origination
6 折笠愛
8 折笠富美子
9 Christopher O'Riley
7 Orinoko
9 The Orioles
4 Orion Czech rapper
7 Orion trance, released Eternity / See Me Here
8 Orion goa trance artist Jean Borelli
3 Orion Rigel Dommisse
3 Orion the Hunter
7 Orion Too
5 רם אוריון
9 Dolores O'Riordan
9 Orishas
9 折戸伸治
4 Orkest Zonder Naam
7 L'Orkestre des Pas Perdus
8 DJ Orkidea
1 The Orkids
1 Orkiestra Na Zdrowie
8 Orkiestra św. Mikołaja
7 Orkrist
3 Orkybash
5 Orlando Romo band
5 Orlando & Die Unterlösten
1 Orlando Julius
8 Orlando Pops Orchestra
5 Tony Orlando
9 Tony Orlando & Dawn
9 Orleans
6 Orleya
9 Orlík
6 Peter Orloff
6 Orlog
7 The Orlons
8 Илья Орлов
6 Alina Orlova
1 Eugene Ormandy
9 Le Orme
3 Orna
4 Ornah-Mental
8 Ornatos Violeta
2 Orne
4 Cid Ornelas
4 Ornob
2 orNot!
7 Leo Ornstein
7 Oro Sólido
2 Xavier Oró & Pep Solórzano
1 Orodruin Black / doom metal solo sideproject of Haat from the Netherlands
6 Orodruin Traditional Doom Metal band from U.S.A.
5 Oroku
3 Orouni
6 Aidan O'Rourke
9 Jim O'Rourke
1 Jim O'Rourke & Mats Gustafsson
3 Jim O'Rourke & Günter Müller
1 Jim O'Rourke, Akira Sakata, YOSHIMIO
1 Orphan Fairytale
4 Orphan Hate
6 The Orphan Project
9 Orphanage
9 Orphaned Land
6 The Orphans
8 Orphax
2 Orpheus Chamber Orchestra
9 Orphx
9 Orplid
1 Orquesta América
8 Orquesta Aragón
6 Orquesta de la Luz
5 Orquesta del Desierto
2 Orquesta Dicupé
6 Orquesta Escuela de Tango
8 Orquesta Francini-Pontier
7 Orquesta Guayacán
9 Orquesta Mondragón
2 Orquesta Original de Manzanillo
5 Orquesta Riverside
5 Orquesta Sinfónica Nacional de Colombia
8 Orquesta Típica Fernández Fierro
9 Orquesta Típica Victor
5 Orquestra Àrab de Barcelona
1 Orquestra Barreto
2 Orquestra de Cordas Brasileiras
5 Orquestra Imperial
2 Orquestra Petrobras Sinfônica
4 Orquestra Popular de Câmara
2 Orquestra Som Livre
5 Benjamin Orr
4 Carl Orr
4 Scott Orr
9 Stacie Orrico
8 Orsa Spelmän
6 Jack Orsen & Taktloss
7 Fabio Orsi
9 Orson
5 Die Orsons
5 Paul Orta
9 Serdar Ortaç
9 Bülent Ortaçgil
6 Bülent Ortaçgil & Fikret Kızılok
5 Bülent Ortaçgil & Teoman
9 Fernando Ortega
6 Jeannie Ortega
6 Orth
1 Christa Orth
6 Orthodox
9 Orthodox Celts
8 Orthrelm
6 Ciriaco Ortiz
8 Diego Ortiz
5 Gumbi Ortiz
6 Joell Ortiz
9 Riz Ortolani
9 Beth Orton
4 Ortophonk
5 Oruna
9 Orup
4 Orwell
6 Orxata Sound System
8 Edward "Kid" Ory
6 O'Ryan
9 Geoffrey Oryema
1 Oryx
5 Roland Orzabal
3 Os Golpes
5 Os Mundi
4 Osaka Monaurail
7 Osaka Popstar
7 Osanna
3 Osasto 11
8 大沢伸一
7 Michael Osborn
8 Osborne Todd Osborn
9 The Osborne Brothers
8 Anders Osborne
1 Bobby Osborne
7 David Osborne Classical/covers pianist
9 Jeffrey Osborne
9 Joan Osborne
4 Matthew Osborne
5 Wynn Osborne
9 Johnny Osbourne
4 Johnny Osbourne meets Roots Radics
9 Kelly Osbourne
9 Ozzy Osbourne
6 Greg Osby
4 Oscar German techno DJ & producer
7 Oscar David Hachour & Florent Sabaton; house music
3 Oscar D'Leon Y Wladimir
8 Oscar Harris
5 Oscar Harris & Debbie
1 Oscar Peterson Quartet
3 The Oscar Peterson Trio With Roy Eldridge, Sonny Stitt, Jo Jones
8 Paul Oscher
1 Oschino
3 Oscillation of Matter
3 Osculum Infame
9 Osdorp Posse
6 Osdorp Posse & Nembrionic
8 Andrew Osenga
8 Charles Osgood
5 Oshen
9 大島ミチル
9 押尾コータロー
1 Osho
9 OSI
9 Osibisa
5 Osiris Progressive Rock band from Bahrain