K'naan Songs: Wavin' Flag (Coca-Cola Celebration Mix) - Bang Bang (feat. Adam Levine) - Is Anybody Out There (feat. Nelly Furtado) - Stop For A Minute (& Keane)
Israel Kamakawiwo'ole
Also known as Bruddah Iz, Bradda IZ
Songs: Over the Rainbow / What a Wonderful World
Karol G Songs: X (feat. Jonas Brothers) - China (& Anuel AA & Daddy Yankee) - Tusa (feat. Nicki Minaj) - Créeme (& Maluma) - Mi cama
Peter Kay Songs: Once Upon a Christmas Song (Geraldine McQueen) - The Winner's Song (Britain's Got the Pop Factor...)
Kehlani Songs: Good Thing (feat. Zedd) - Gangsta - Done for Me (feat. Charlie Puth)
Michael Patrick Kelly Songs: Beautiful Madness - Roundabouts - iD (feat. Gentleman)
Kensington Songs: Uncharted - Heading Up High (feat. Armin Van Buuren) - Sorry - All For Nothing (From Bloedlink movie soundtrack) - Streets
Kesha Songs: Woman (feat. The Dap-Kings Horns) - Praying - Cannibal - Timber (& Pitbull) - This Is Me
Master KG
Songs: Jerusalema (feat. Nomcebo Zikode)
Kiiara Songs: Heavy (& Linkin Park)
The Killers
Brandon Flowers, Dave Keuning, Mark Stoermer & Ronnie Vannucci Jr.
Songs: Human - Mr. Brightside - Read My Mind - Just Another Girl - Somebody Told Me
The King and I (musical)
The musical (1951) Richard Rodgers & Oscar Hammerstein II
Gertrude Lawrence & Yul Brynner

Songs: I Whistle a Happy Tune (Gertrude Lawrence) - Something Wonderful (Dorothy Sarnoff) - Getting to Know You (Gertrude Lawrence) - Shall We Dance? (Yul Brenner & Gertrude Lawrence) - Hello, Young Lovers (Gertrude Lawrence)
Evelyn King
Evelyn "Champagne" King
Songs: Shame - Love Come Down
Peter Kingsbery Songs: Only The Very Best - The Promise You Made (in duet with Anna LaCazio)
Paul Stanley, Gene Simmons, Tommy Thayer, Eric Singer & Bruno Eng
Songs: I Was Made For Lovin' You - Crazy Crazy Nights - Beth - God Gave Rock & Roll To You - Rock and Roll All Nite
Brett Kissel Songs: Damn (feat. Dave Mustaine)
Kula Shaker Songs: Hush
Kungs Songs: This Girl (Remix) - I Feel So Bad (feat. Ephemerals) - More Mess (feat. Olly Murs & Coely) - Don't You Know (feat. Jamie N Commons)
Kwabs Songs: Walk
Songs: What's Love Got to Do with It - Higher Love (& Whitney Houston) - Firestone (feat. Conrad) - Lose Somebody (feat. OneRepublic) - Stay (feat. Maty Noyes)