- Kevin Kline & John Barrowman
- Kevin Kline & Ashley Judd & Ashley Judd
- Kenny Rogers & Sheena Easton
- Jill Scott & Kirk Franklin
- Kaskade & Tiësto
- Sol Hoopii's Novelty Trio
- Kanon Wakeshima
- Grandtheft & Keys N Krates
- Katie Ladner
- Kenton Duty & Adam Irigoyen
- Kion
- MIKESCHAIR & Lecrae
- Kurt Carr & The Kurt Carr Singers
- Kristin Chenoweth, George Doering, Michael Thompson, Harvey Mason, Robbie Buchanan, Randy Waldman, Neil Stubenhaus, Eric Rigler, Doug Livingston, Beverly Staunton & Jonathan Tunick
- Kat Robichaud
- Will Swenson
- Ken Andrews
- Phineas, Ferb, Cast - Phineas and Ferb & Slash
- Kathryn Beaumont
- Kid Massive & Alex Sayz
- KAPTN
- Karen Olivo, Lin Manuel-Miranda & Robin de Jesus
- Joshua Mostel & André Previn
- The Brady Bunch
- Wilbert Harrison
- Ken Jennings & Angela Lansbury
- Kenny Nolan
- Kate Reinders & John Cariani
- Styles P, Jadakiss & Lil Jon & The East Side Boyz
- Kate Reinders, John Cariani, Brooks Ashmanskas, Brian d'Arcy James & Rotten Ensemble
- Kristin Chenoweth, George Doering, Michael Thompson, Robbie Buchanan, Harvey Mason, Randy Waldman, Neil Stubenhaus, Eric Rigler, Doug Livingston, Beverly Staunton & Jonathan Tunick
- Kid Sister
- Kristin Chenoweth, Robert Fisher & The Coffee Club Orchestra
- Nelly, Dirty Money & Murphy Lee
- Katie Herzig & Matthew Perryman Jones
- KC and the Sunshine Band & Teri DeSario
- Kids of 88
- Keith & Kristyn Getty
- Kill it Kid
- Keith Ape
- Ken Leung & Francis Jue
- Guordan Banks
- Katharine McPhee & Andrea Bocelli
- King Jacob, Murphy Lee & Prentiss Church
- Keyshia Cole & Tank
- Kevin Kiner & The City of Prague Philharmonic Orchestra
- Sarah Rice & Victor Garber
- Koko Taylor
- Play! A Video Game Symphony
- Kim Burrell
- The Cox Family
- Kodály Quartet
- Karla DeVito
- Kevin Chamberlin & Female Ancestors
- Mel Brooks, Original Motion Picture Soundtrack, Gary Beach, Roger Bart, Nathan Lane, Matthew Broderick, Ensemble & Orchestra
- Kristin Chenoweth, John Pizzarelli, George Doering, Jonathan Tunick, Michael Thompson, Harvey Mason, Robbie Buchanan, Randy Waldman, Neil Stubenhaus, Eric Rigler, Doug Livingston & Beverly Staunton
- Katie Hall, John Owen-Jones, Gareth Gates & Rosalind James
- Kodak Black
- Konshens
- Kid Frost
- KSI
- Kevin Lovatt
- Kyli Rae
- Keyshia Cole & Faith Evans
- Krystal Meyers
- KYLE & Mr. Man
- Joe C.
- Keith Sweat & Gerald Levert
- Kendall Payne
- Kid Sister feat. Nina Sky
- Natacha Atlas
- Kempf Trio
- Kim Cattrall, Kristin Davis, Cynthia Nixon & Sarah Jessica Parker
- Keyshia Cole & Timbaland
- Keith Carradine
- Kimberly Cole
- Keak da Sneak
- Kermit Ruffins & The Barbecue Swingers
- Kenny Wayne Shepherd & Kid Rock
- Iyanya
- Koven
- Marshmello
- KOAN Sound & Asa
- Keyshia Cole & Dr. Yvonne Cole
- Kwamé
- Kurt Bestor
- Kilo
- Kasper from the K
- Kevin Cahoon
- Kut Klose
- King Britt & Sister Gertrude Morgan
- Katie Thompson
- Kevin McCall
- Katie Costello
- Khia & DSD
- Kennedy
- Kimie
- Krystal & Shabba Ranks
- KMFDM
- Brian Johnson & Joshua Davis