K'Jon Songs: This Time
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)
K/DA Songs: POP/STARS
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) - Tusa (feat. Nicki Minaj) - China (& Anuel AA & Daddy Yankee) - Créeme (& Maluma) - Mi cama
Kavinsky Songs: Nightcall (Drive OST)
Kehlani
Songs: Gangsta - Done for Me (feat. Charlie Puth) - Good Thing (feat. Zedd)
Kelis Songs: Milkshake - Lil' Star (feat. Cee-Lo) - Bounce (& Calvin Harris) - Trick Me - Millionaire (feat. André 3000)
Tori Kelly
Songs: Colors Of The Wind (We Love Disney) - Don't You Worry 'bout a Thing (From Sing movie soundtrack) - Hallelujah (From Sing movie soundtrack) - Coffee - Never Alone (feat. Kirk Franklin)
Kensington Songs: Heading Up High (feat. Armin Van Buuren) - Streets - Uncharted - All For Nothing (From Bloedlink movie soundtrack) - Sorry
Kermit
From The Muppet Movie movie soundtrack
See also: The Muppets

Songs: The Rainbow Connection
Kesha
KE$HA
Songs: Praying - Woman (feat. The Dap-Kings Horns) - TiK ToK - Timber (& Pitbull) - Rainbow
Kiiara Songs: Heavy (& Linkin Park)
The Killers
Brandon Flowers, Dave Keuning, Mark Stoermer & Ronnie Vannucci Jr.
Songs: Mr. Brightside - Spaceman - Somebody Told Me - All These Things That I've Done - Human
The King and I (musical)
The musical (1951) Richard Rodgers & Oscar Hammerstein II
Gertrude Lawrence & Yul Brynner

Songs: Hello, Young Lovers (Gertrude Lawrence) - Getting to Know You (Gertrude Lawrence) - Shall We Dance? (Yul Brenner & Gertrude Lawrence) - I Have Dreamed (Doretta Morrow & Larry Douglas) - I Whistle a Happy Tune (Gertrude Lawrence)
Peter Kingsbery Songs: The Promise You Made (in duet with Anna LaCazio) - Only The Very Best
Kiss
Paul Stanley, Gene Simmons, Tommy Thayer, Eric Singer & Bruno Eng
Songs: I Was Made For Lovin' You - Lick It Up - Cold Gin - Rock and Roll All Nite - Heaven's On Fire
Keira Knightley Songs: Lost Stars (Begin Again)
Kula Shaker Songs: Hush
Kungs
Songs: More Mess (feat. Olly Murs & Coely) - This Girl (Remix) - I Feel So Bad (feat. Ephemerals) - Don't You Know (feat. Jamie N Commons)