- Kaat Hellings
- Kadri Voorand
- Kaira
- Kaj Chydenius
- Kalevi Korpi
- Kansas City Kansas Community College The Standard Vocal Jazz Ensemble
- Kapócs Zsóka
- Karen
- Karen Aoki
- Karen Malka
- Karen Mantler
- Karen Rodenas
- Karen Souza
- Karen Whittingham
- Karima
- Karin Bachner & The Pocket Big Band
- Karin Krog
- Karina Moreno
- Karita Mattila
- Karl Gerhard
- Karl Olsson And Power Of People
- Karlie Bruce
- Karolina Beimcik
- Karolina Śmietana
- Karoline Weidt Quartett
- Karrin Allyson
- Karsten Troyke
- Kasia Bortnik
- Kat Edmonson
- Kat Gang
- Kat Parra
- Katarina Henryson
- Kate Ceberano
- Kate Ceberano and Her Sextet
- Kate Davis
- Kate Dimbleby
- Kate Mc Garry
- Kate McGarry
- Kate Westbrook
- Katharine McPhee
- Kathryn Samman
- Kathy Kosins
- Katie Ernst
- Katie Lunette
- Katie Melua
- Katja & Ingela
- Katrien Verheijden
- Katrin Sass
- Katrine Madsen
- Kay Starr
- Kayaan
- Kaye
- Keely Smith
- KEIKO LEE
- Keith Copeland
- Kellee Patterson
- Kelley Hurt
- Kelley Johnson
- Kelli O'Hara
- Kelli O’Hara
- Kelly Harland
- Kellylee Evans
- Kemala Ayu
- Ken Dodd
- Kendra Shank
- Kendra Shank Quartet
- Kenny Baker
- Kenny Ball
- Kenny Washington
- Kenny Yoon
- Kerry JK
- Kevin Hays
- Kerry JK
- Kevin Hays
- Kevin Mahogany
- Kevyn Lettau
- KID BE KID
- Kika Wasp
- Kim
- Kimiko Itoh
- King Curtis
- King Oliver
- King Pleasure
- Kings High School 2Knight 2Knight
- Kip Hanrahan
- Kirsi Ranto
- Kitty Kallen
- Kitty Margolis
- Kitty White
- KJ Denhert
- Kjell Karlsson
- Kjemilie
- Klaus Lage
- Kloster Band
- Knauskoret
- Konstantin Rassomahin
- Kozma Orsi
- Kristen Lee Sergeant
- Kristiana Roemer
- Kristin Asbjørnsen
- Kristin Sevaldsen
- Kristin Slipp
- Kristy
- Ksenia Parkhatskaya
- KT Sullivan
- Kucz
- Kurt Elling