- Katharine McPhee
- Kathy Mattea
- Kathi Garbi
- Kathleen Edwards
- Kathryn Williams
- Katherine Jenkins
- Kathy Kelly
- Kathy Troccoli
- Käthe Kühl & Kurt Mühlhardt
- Kathrin & Peter
- Kathleen Battle
- Kathie Lee
- Kathy Mar
- Kathryn Scott
- Kathy Kirby
- Kathrin & Klaus
- Kathleen Wilhoite
- Kathleen
- Kathryn Calder
- Kathi Gabri
- Kathy Young
- Kathrin Fischer
- Katharsis
- Kathy Shooster
- Kathie Lee Gifford
- Kathy Linden
- Kath Bloom
- Kathy Taylor
- Kathryn Williams & Neill MacColl
- Katherine Nelson
- Kathrin Lindner
- Kathrin Andrè
- Kathreiner
- Kathryn Gallagher
- Kathleen Del Casino
- Kathleen Weinert
- Kathy Leander
- Kathy Young & The Innocents
- Kathryn Beaumont
- Katharine Whalen
- Kathryn Grayson
- Kathryn Roberts & Sean Lakeman
- Katharine Blake
- Kathleen Ferrier
- Kathleen MacInnes
- Katholicus
- Kathy Phillips
- Kathryn Joseph
- Kathy Brier
- Kathy Sledge
- Kathaaria
- Kathy K
- Kathleen Irvine
- Katherine Hilgenberg
- Kathryn Ostenberg
- Katharina Franck
- Kathy Griffin
- Kathy Kallick
- Katherine Thompson
- Kathy and David Blackwell
- Kathryn Rose
- Katharine Lee Bates
- Kathy Diamond
- Katharina Nuttall
- Katherin Severino