OASISbritpop, pop-rockpopmuzik
OCEAN COLOUR SCENEbrit-pop, pop-rockpopmuzik
OFFLAGA DISCO PAXalt-rockitalia
OFRA HAZAworld music, ethno-poppopmuzik
OKKERVIL RIVERalt-folk-rockrockedintorni
OMDsynth-poppopmuzik
ONEIDApsych-rock, garage, waverockedintorni
OPETHprogressive-metal, death-metal, progressive-rockrockedintorni
ORANGE JUICEalt-poppopmuzik
ORBambient-house, tranceelettronica
ORBITALambient, technoelettronica
ORGANdarkwave, alt-rockdark
OSANNAprogressive rock, italian prog, psichedeliaitalia
OTHER LIVESchamber-poppopmuzik