Keinan Abdi Warsame
Songs: Wavin' Flag (Coca-Cola Celebration Mix) - Is Anybody Out There (& Nelly Furtado) - Bang Bang (& Adam Levine) - Stop for a Minute (& Keane)
K. Maro Songs: Femme Like U (& Nancy Martinez) - Victoire (Shy'm)
Käärijä Songs: Cha cha cha (Eurovision Finland) - Cha cha cha (reggae mix)
Bart Kaëll Songs: Zeil je voor het eerst (remix) (& Dorothee Vegas & Like Maarten) - De Marie Louise
Lu Kala Songs: Lottery (& Latto)
Kalash Songs: Mwaka moon (& Damso) - Taken
Kali Songs: Area Codes
Paul Kalkbrenner Songs: Sky and Sand (Berlin Calling)
Kalush Orchestra Songs: Stefania (Eurovision Ukraine)
Kamelot Songs: The Haunting (Somewhere in Time) (& Simone Simons)
Kaolin Songs: Partons vite (si tu veux bien) - Je reviens
Karsu Songs: Losing You (Beste Zangers) - Hollywood Seven (Beste zangers) - Je suis malade (& Belle Pérez)
Kavinsky Songs: Nightcall (Drive OST)
Kim Kay Songs: Lilali
Buddy Kaye Songs: I Dream of Jeannie (& Hugo Montenegro)
KB Songs: Church Clap (& Lecrae)
Chief Keef
Also known as Keith Farrelle Cozart
Songs: Love Sosa
Keith Songs: 98.6
Tori Kelly
Songs: Don't You Worry 'bout a Thing (From Sing movie soundtrack) - I Was Made for Loving You (& Ed Sheeran) - Hallelujah (From Sing movie soundtrack) - Let's Go Crazy (Sing 2) - Colors of the Wind (We Love Disney)
Kensington Songs: Sorry - Heading Up High (& Armin Van Buuren) - Uncharted - All For Nothing (From Bloedlink movie soundtrack) - Streets
From The Muppet Movie movie soundtrack
See also: The Muppets

Songs: The Rainbow Connection
Songs: Timber (& Pitbull) - Woman (& The Dap-Kings Horns) - Praying - Hunt You Down - C'Mon
Master KG
Songs: Jerusalema (& Nomcebo Zikode)
Kiiara Songs: Heavy (& Linkin Park)
The Killers
Brandon Flowers, Dave Keuning, Mark Stoermer & Ronnie Vannucci Jr.
Songs: Mr. Brightside - Human - The Man - Somebody Told Me - Here With Me
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) - We Kiss in a Shadow - Shall We Dance? (Yul Brenner & Gertrude Lawrence) - I Whistle a Happy Tune (Gertrude Lawrence)
Evelyn King
Also known as Evelyn "Champagne" King
Songs: I'm in Love - Love Come Down - Shame
The Kingdom Choir
Karen Gibson
Songs: Stand by Me
Paul Stanley, Gene Simmons, Ace Frehley, Tommy Thayer, Eric Singer & Bruno Eng
Songs: Love Gun - Rock and Roll All Nite - Sure Know Something - Detroit Rock City - Shout It Out Loud
Also known as Kein Mehrheit Für Die Mitleid
Songs: Juke Joint Jezebel
Koxie Songs: Garçon
Jana Kramer
Also known as Jana Rae Kramer
Songs: Whiskey - I Got the Boy - Why Ya Wanna - Voices - I Won't Give Up
KRN Songs: Les anges
KSI Songs: Holiday
Kula Shaker Songs: Hush
Kungs Songs: Substitution (& Purple Disco Machine) - This Girl - I Feel So Bad (& Ephemerals) - Don't You Know (& Jamie N Commons) - Clap Your Hands
Kyle Songs: iSpy (& Lil Yachty)
Benoît Poher, Florian Dubos, Nicolas Chassagne & Fabien Dubos
Songs: Je cours - Dernière danse - Dernière danse (feat. Cœur de pirate) (& Cœur de pirate) - Le Graal - Le chemin (& Sita)