K'naan Songs: Wavin' Flag (Coca-Cola Celebration Mix) - Is Anybody Out There (feat. Nelly Furtado) - Bang Bang (feat. Adam Levine) - Stop For A Minute (& Keane)
Kadooh Songs: Floor It
Paul Kalkbrenner Songs: Sky and Sand (Berlin Calling)
Israel Kamakawiwo'ole
Also known as Bruddah Iz, Bradda IZ
Songs: Over The Rainbow / What A Wonderful World
Karol G Songs: China (& Anuel AA & Daddy Yankee) - Mi cama
Kavinsky Songs: Nightcall (Drive OST)
Peter Kay Songs: Once Upon a Christmas Song (Geraldine McQueen) - The Winner's Song (Britain's Got the Pop Factor...)
Kelis Songs: Milkshake - Trick Me - Bounce (& Calvin Harris) - Millionaire (feat. André 3000) - Acapella
Kenny Songs: The Bump
Kensington Songs: Sorry - Streets - Heading Up High (feat. Armin Van Buuren) - All For Nothing (From Bloedlink movie soundtrack)
Wiz Khalifa
Songs: We Own It (Fast & Furious) (& 2 Chainz) - See You Again (feat. Charlie Puth) - Payphone (& Maroon 5) - No Sleep - Shell Shocked (feat. Kill the Noise & Madsonik)
The Killers
Brandon Flowers, Dave Keuning, Mark Stoermer & Ronnie Vannucci Jr.
Songs: Mr. Brightside - Human - All These Things That I've Done - Somebody Told Me - The Man
The King and I (musical)
The musical (1951) Richard Rodgers & Oscar Hammerstein II
Gertrude Lawrence & Yul Brynner

Songs: Getting to Know You (Gertrude Lawrence) - I Have Dreamed (Doretta Morrow & Larry Douglas) - Hello, Young Lovers (Gertrude Lawrence) - Shall We Dance? (Yul Brenner & Gertrude Lawrence) - Something Wonderful (Dorothy Sarnoff)
The Kingdom Choir
Karen Gibson
Songs: Stand By Me
Peter Kingsbery Songs: The Promise You Made (in duet with Anna LaCazio) - Only The Very Best
Brett Kissel Songs: Damn (feat. Dave Mustaine)
Keira Knightley Songs: Lost Stars (Begin Again)
Kula Shaker Songs: Hush
Kungs Songs: This Girl (Remix) - Don't You Know (feat. Jamie N Commons) - More Mess (feat. Olly Murs & Coely) - I Feel So Bad (feat. Ephemerals)
Kwabs Songs: Walk