| Klapa Sinj | 1 | 1988 |
| Klapa Solin | 1 | 1982 |
| Klapa Solinke | 1 | 1982 |
| Klapa Srdela | 2 | 1978 - 1980 |
| Klapa Studenac | 1 | 1984 |
| Klapa Trogir | 9 | 1973 - 1989 |
| Klapa Trogir, Klapa Radovan, Klapa Kairos And Klapa Starih Pulkih Pjevača Trogira | 1 | 1989 |
| Klapa Tučepi | 1 | 1989 |
| Klapa Zadar | 2 | 1977 - 1982 |
| Klapa Zadranke | 2 | 1978 - 1985 |
| Klark Kent | 2 | 1980 |
| Klasie Kloppers En Kloppie Klaasens | 1 | |
| Klasse Möllberg | 1 | 1979 |
| Klassische Philharmonie Stuttgart | 1 | 1970 |
| The Klaudt Indian Family | 1 | |
| Klaus Alzner E Sua Orquestra | 1 | |
| Klaus And Servants | 2 | 1973 - 1974 |
| Klaus Bloch | 1 | 2000 |
| Klaus Der Geiger | 1 | 1973 |
| Klaus Doldinger | 44 | 1963 - 1986 |
| Klaus Doldinger Quartet | 2 | 1969 |
| Klaus Hellwig | 1 | |
| Klaus Hoffmann | 4 | 1975 - 1982 |
| Klaus Kinski | 1 | 1980 |
| Klaus Kjellerup | 1 | 1985 |
| Klaus Lage | 18 | 1982 - 1991 |
| Klaus Lage And Band | 1 | 1991 |
| Klaus Lage Band | 11 | 1984 - 1987 |
| Klaus Lage Und Members | 13 | 1984 - 1991 |
| Klaus Lenz | 1 | 1979 |
| Klaus Lenz - Big Band | 1 | 1976 |
| Klaus Löwitsch | 1 | 1976 |
| Klaus Nomi | 3 | 1981 - 1982 |
| Klaus Renft-Combo | 1 | 1976 |
| Klaus Schulze | 22 | 1973 - 2013 |
| Klaus Schulze And Ash Ra Tempel | 1 | 1976 |
| Klaus Schulze And Günter Schickert | 1 | 2013 |
| Klaus Schønning | 1 | 1985 |
| Klaus Steiner And His Orchestra | 1 | 1975 |
| Klaus Weiss | 2 | 1978 - 2017 |
| Klaus Wunderlich | 76 | 1960 - 1986 |
| Klaus Wunderlich And His New Pop Organ Sound | 5 | 1975 - 1976 |
| Klaus Wunderlich Und Das Orchester Jerry Wilton | 2 | 1972 |
| Klaus Wunderlich, Hammondorgel Mit Rhythmusgruppe | 1 | 1969 |
| Klavirski Duo Dekleva | 1 | 1978 |
| Klawerjas | 2 | 1986 - 1988 |
| The Klaxons | 2 | 1984 |
| Kleeer | 4 | 1981 - 1984 |
| Klein And MBO | 2 | 1983 |
| Klein Orkest | 3 | 1982 - 1985 |
| Kleinkrieg | 1 | 1984 |
| Klemetti-Opiston Kamarikuoro Ja Ylioppilaskunnan Laulajat | 1 | 1978 |
| The Klezmorim | 2 | 1981 - 1984 |
| The KLF | 6 | 1988 - 1991 |
| Kliby Und Caroline | 1 | 1979 |
| Kliche | 2 | 1980 - 1982 |
| Klinci S Ribnjaka | 1 | 1990 |
| Die Klipwerf Boereorkes | 2 | |
| Klique | 3 | 1981 - 1983 |
| Klockwerk Orange | 1 | 1975 |
| De Klok Dutch Street Organ | 1 | 1975 |
| Klokkenkoor uit Valkenburg | 1 | 1980 |
| Klondike Pete And The Huskies | 1 | 1980 |
| The Klowns | 1 | 1970 |
| The Klubs | 1 | 1999 |
| Klumpkes-Blumkes | 2 | 1981 |
| Kluster | 2 | 2012 |
| Klyderne | 1 | 1980 |
| Klymaxx | 4 | 1981 - 1984 |
| The Knack | 21 | 1979 - 2017 |
| The Knickerbockers [Polka] | 1 | |
| The Knickerbockers | 7 | 1965 - 2012 |
| Knifven | 3 | 2015 - 2019 |
| The Knights [Capitol] | 1 | 1964 |
| The Knights [King Richard And The Knights] | 1 | 1999 |
| The Knightsbridge Opera Orchestra And Choir | 1 | 1971 |
| Knightsbridge Strings | 1 | 1967 |
| The Knightsbridge Strings | 2 | 1959 - 1962 |
| The Knightsbridge Theatre Orchestra And Chorus | 1 | 1965 |
| The Knitters | 2 | 1985 |
| The Knob Lick Upper 10,000 | 4 | 1963 |
| Knock-Out Greg And Blue Weather | 1 | 2002 |
| Knocker Jungle | 2 | 1970 - 1971 |
| The Knockouts | 1 | 2013 |
| The Knocky Parker Trio | 1 | 1957 |
| The Knowbody Else | 1 | 1969 |
| Knowe O'Deil | 1 | 1987 |
| Knox | 1 | 1983 |
| Knucklebone Oscar | 3 | 2008 - 2024 |
| Knuckles O'Reily | 1 | |
| Knuckles O'Toole | 9 | 1955 - 1958 |
| Knuckles O'Toole And His Honky Tonk Piano And Orch. | 2 | 1955 |
| Knud Jörgensen | 1 | 1971 |
| Knut Kiesewetter | 3 | 1968 - 1981 |
| Ko De Boswachter | 1 | 1975 |
| Kobus En Hannalie | 1 | 1971 |
| Kobus En Hannelie | 4 | 1971 - 1974 |
| Kobus Paulsen | 1 | 1972 |
| Koch Marshall Trio | 1 | 2018 |
| Kocze Antal And His Gipsy Orchestra | 1 | 1954 |
| Kodak Military Band | 1 | 1971 |
| The Kodaks | 2 | 1990 |
| Koeckert-Quartett | 1 | 1957 |
| Koerner, Ray And Glover | 6 | 1963 - 1965 |
| Kofi | 1 | 1994 |
| Kohske Mine Quintet | 1 | 2022 |
| Kohsuke Mine | 4 | 2017 - 2024 |
| Koichi Matsukaze Trio | 1 | 2018 |
| Koichi Matsukaze Trio Feat. Ryojiro Furusawa | 1 | 2022 |
| Koichi Oki | 2 | 1971 |
| Koji Kondo | 1 | 1988 |
| Kojo | 2 | 1979 - 1985 |
| Kojo Ja Jim Pembroke | 1 | 1985 |
| Koko Taylor | 14 | 1969 - 1990 |
| Koko Taylor And Her Blues Machine | 2 | 1987 |
| Kokomo | 2 | 1961 |
| Kokomo [UK] | 7 | 1975 - 1982 |
| Kokomo Arnold | 3 | 1969 - 1987 |
| The Kokomo Kings | 4 | 2013 - 2022 |
| Kolbe - Illenberger - Dauner | 1 | 1980 |
| Kole And Param | 1 | 1969 |
| Koleda | 1 | 1976 |
| Kolinda | 4 | 1976 - 1988 |
| Die Kollmannsberger | 1 | |
| Kolmas Nainen | 6 | 1986 - 1992 |
| Kölner Saxophon Mafia | 1 | 1984 |
| Kolorado Kool-Aid And Tommy And The Electratones | 1 | 1977 |
| Kolossale Jugend | 1 | 1989 |
| Die Kölsche Mösche | 2 | 1974 - 1975 |
| Kolumbus Kris | 1 | 1991 |
| KOM Teatteri | 1 | 1972 |
| Komár László | 3 | 1984 - 1990 |
| Kombi | 1 | 1985 |
| Komeda Quintet | 3 | 1967 - 2016 |
| Kommissarie Roy | 1 | 1981 |
| Komorni Moški Pevski Zbor - Ptuj | 1 | 1979 |
| Komorni Moški Zbor KUD Stane Žagar | 1 | 1972 |
| Komorni Orkestar "Vatroslav Lisinski" | 1 | 1976 |
| Komorni Studio Zagrebačke Filharmonije "Arti Musices", Tonko Ninić | 1 | 1973 |
| Komorni Zbor "Peko" Tržič; Kvintet Bratov Zupan Tržič | 1 | |
| Komorni Zbor RTV Ljubljana | 6 | 1971 - 1986 |
| Konami Digital Entertainment | 1 | 2017 |
| Konami Kukeiha Club | 1 | 2017 |
| Koncz Zsuzsa | 3 | 1971 - 1975 |
| Kong Ling | 4 | 1961 - 2022 |
| Kong Ling And The Fabulous Echoes | 1 | 1963 |
| Kong Ling With The Diamond Music Co. Studio Orchestra | 1 | 1962 |
| Kongas | 3 | 1974 - 1978 |
| Kongokören / Zairekören | 1 | 1978 |
| Die Königliche Griechische Festspieltruppe | 1 | |
| Koninklijk Heerlens Mannenkoor "St. Pancratius" | 1 | 1971 |
| Koninklijke Militaire Kapel | 1 | |
| De Koninklijke Militaire Kapel | 1 | |
| Konkolo Orchestra | 1 | 2024 |
| Konrad Elfers | 1 | 1967 |
| Konrad Ragossnig | 1 | 1974 |
| Die Konsertina Kluisenaar | 1 | 1983 |
| Konsertinameesters | 1 | 1982 |
| Konstantin Babić | 1 | 1984 |
| Konstantin Kotlarov | 1 | 1965 |
| Konstantin Wecker | 9 | 1974 - 1982 |
| Konte Family | 1 | 1982 |
| Kontiki Suite | 2 | 2017 |
| The Kontikis | 1 | |
| Kontra | 1 | 2021 |
| Kontraband | 1 | 1983 |
| Kontrafouris, Paterelis | 1 | 1991 |
| Kontraritam | 1 | 1982 |
| Kontrola Leta | 1 | 1983 |
| Koobas | 3 | 1969 - 1986 |
| The Koobas | 3 | 1969 - 1986 |
| Kookie Freeman | 2 | 1968 |
| Kookie Freeman And His Velvet Sound | 2 | 1968 |
| The Kooks | 1 | 2011 |
| Kool And The Gang | 70 | 1969 - 1989 |
| Kool Cad And The Tailfins | 1 | 1979 |
| Kool Moe Dee | 2 | 1987 |
| Koolaid (Global Tyranny) | 1 | 2011 |
| Koor Van De Stedelijke Opera Berlijn, Hermann Lüddecke / Groot Opera-Orkest, Berislav Klobucar | 1 | |
| Koor Van Het Russische Leger o.l.v. Boris Alexandrov | 1 | |
| De Koorschool St. Bavo Haarlem, Het Herenkoor Van De Kathedrale Basiliek Haarlem | 1 | |
| Koorvereniging "Pro Musica" | 1 | |
| Koos Alberts | 2 | 1986 - 1988 |
| Koos Du Plessis | 3 | 1979 - 1981 |
| Koos En Hester Nortje | 1 | |
| Koos Kombuis | 1 | 1989 |
| Koos Ras | 4 | 1967 - 1981 |
| Koot en Bie | 1 | 1980 |
| Kopperfield | 1 | 1974 |
| Kór Glyvra Kirkju | 1 | 1973 |
| Korál | 3 | 1980 - 1984 |
| Kore Van Die Lindense Hoërskool Onder Leiding Van Anna Van Rooyen | 1 | 1970 |
| Korean Blind Quartet | 1 | |
| Korean Children's Choir | 1 | 1968 |
| Koreana | 1 | 1988 |
| Kören Ad Libitum | 1 | 1979 |
| Kören Pro-Arcu Med Anna-Lena Löfgren | 1 | 1988 |
| The Korgis | 16 | 1979 - 1983 |
| Korkkijalka | 1 | 1989 |
| Korla Pandit | 2 | 1960 |