Radio OP:

O-Zone O'Connor, Sinaed O'Connor, Sin?ad O'Connor,Sinaed O'Neal, Alexander O'Neal,Alexander O'Sullivan, Gilbert O'Sullivan,Gilbert Oaschloch Oasis Oberst, Conor OC dawgs Ocean, Billy Ocean,Billy Oceana & Kim Ocho Macho Ocho Macho & Kowalsky Ocho Macho feat. Deniz Odell, Tom Odell,Tom Odessa Odett Oehl Of Monsters and Men Offspring, The Offspring,The Oh Weatherly Ohrbooten Oi Va Voi Ois & Nix OK Go Okkervil River Oktobar 1864 OKUD Trešnjevka Oláh, Gergő Oláh, Ibolya Oláh,Gergő Oláh,Ibolya Old Brown Shoes Oldfield, Mike Oldfield, Sally Oldfield,Mike Oldfield,Sally Oleander Oliver Oliver Dragojevic Olivia Rodrigo Olly Murs OMC OMD Omega Omen Omfo Omi One Direction One Giant Leap One Two Three Cheers and a Tiger OneRepublic Onk Lou Onkel Herberts Opca Opasnost Opća opasnost feat. Zlatni dukati OPITZ BARBI Opitz, Barbi Opitz,Barbi OPM Opus Opus III Opus Trio Ora, Rita Ora,Rita Orange Blue Orbison, Roy Orbison,Roy Orbital Orhan, Mahmut Original Blues Brothers, The Original Blues Brothers,The Orishas Orsi Osbone, Joan Osbone,Joan Osborne, Joan Osborne,Joan Osmi Putnink Ostbahn-Kurti & Die Chefpartie Ostbahn, Kurt Ostbahn,Kurt Other Ones, The Other Ones,The Otis Redding Ou Est Le Swimming Pool Outkast Overalls, The Overalls,The Owl City Ozon Ön és Ön ÖNésÖN Ördögök, Amorf