| | - Klaus Badelt
- King Crimson
- The KLF
- Katherine Jenkins
- Keith Jarrett, Charlie Haden, Paul Motian
- Kurt Cobain
- King's College Choir
- Kris Bowers
- Kati Debretzeni, English Baroque Soloists, John Eliot Gardiner
- Khatia Buniatishvili
- Kian Soltani
- Kali Malone
- Kelly Moran
- Keith Jarrett
- Keleketla!
- Karl Jenkins
- Kate Ceberano
- Kirill Petrenko
- Kuniko
| - Klaus Nomi
- Krystian Zimerman
- The King's Singers
- Klaus Schulze
- Kristin Chenoweth
- Klaus Makela
- Klaus Schulze & Lisa Gerrard
- Kian Soltani & Aaron Pilsan
- Kennedy & Jaz Coleman
- Koen van Stade & Neal Peres Da Costa
- Keaton Henson
- Kid Koala & Trixie Whitley
- Kronos Quartet
- Koto Vortex
- Keigo Hoashi & Keiichi Okabe
- Kronos Quartet, Kimmo Pohjonen & Samuli Kosminen
- Kathleen Battle
- Klaus Doldinger
- Kolinda
| - Karl Loxley
- Kurt Sanderling, Peter Schreier, Birgit Finnila & Berlin Symphony Orchestra
- The Kyteman Orchestra
- Krystian Zimerman, Wiener Philharmoniker, Leonard Bernstein
- Katia & Marielle Labeque
- Kyohei Sorita
- Kaada
- Kathleen Battle & Wynton Marsalis
- Kate Lindsey, Arcangelo, Jonathan Cohen
- Karl Richter
- Kayo Dot
- Karin Bloemen
- Kate Simko & London Electronic Orchestra
- Koyaanisqatsy
- Kinderen voor Kinderen
- Karl Bohm, Wiener Philharmoniker
- Karel Ancerl, Czech Philharmonic Orchestra
- Kimmo Pohjonen
- Kurt Weill
- Klaus Wiese
- Kendra Springer
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