K'Jon Songs: This Time
K'naan Songs: Wavin' Flag (Coca-Cola Celebration Mix) - Stop For A Minute (& Keane) - Bang Bang (feat. Adam Levine) - Is Anybody Out There (feat. Nelly Furtado)
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) - Créeme (& Maluma) - Mi cama - China (& Anuel AA & Daddy Yankee)
Kavinsky Songs: Nightcall (Drive OST)
Kehlani Songs: Good Thing (feat. Zedd) - Gangsta - Done for Me (feat. Charlie Puth)
Michael Patrick Kelly
See also: The Kelly Family
Songs: Beautiful Madness - Roundabouts - iD (feat. Gentleman)
Tori Kelly
Songs: Don't You Worry 'bout a Thing (From Sing movie soundtrack) - Hallelujah (From Sing movie soundtrack) - Colors Of The Wind (We Love Disney) - Hollow - Dear No One
Kensington Songs: Heading Up High (feat. Armin Van Buuren) - Sorry - Streets - Uncharted - All For Nothing (From Bloedlink movie soundtrack)
Kermit
From The Muppet Movie movie soundtrack
See also: The Muppets

Songs: The Rainbow Connection
Kesha
KE$HA
Songs: TiK ToK - Praying - Woman (feat. The Dap-Kings Horns) - This Is Me - Good Old Days (feat. Macklemore)
Master KG
Songs: Jerusalema (feat. Nomcebo Zikode)
The Killers
Brandon Flowers, Dave Keuning, Mark Stoermer & Ronnie Vannucci Jr.
Songs: Mr. Brightside - Human - Just Another Girl - The Man - Somebody Told Me
The King and I (musical)
The musical (1951) Richard Rodgers & Oscar Hammerstein II
Gertrude Lawrence & Yul Brynner

Songs: Getting to Know You (Gertrude Lawrence) - Hello, Young Lovers (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 - Detroit Rock City - Rock and Roll All Nite - Black Diamond - Shout It Out Loud
Kula Shaker Songs: Hush
Kungs Songs: This Girl (Remix) - I Feel So Bad (feat. Ephemerals) - Don't You Know (feat. Jamie N Commons) - More Mess (feat. Olly Murs & Coely)