K
- k.d. Language Arts - Nickelodeon Magazine April 1997 I Was Country When I Was In School Pull Out Prank CD cover
- K.K. Slider - Animal Crossing
- Kabbage Boy - BrĂ¼tal Legend
- Jamie Kaeap
- Julio Kalamari - Bonkers TV series
- Kandy Floss - Celebrity Big Brother
- Kris Kedder - Monk
- The Kanker Sisters - Ed, Edd n Eddy
- Keira - Barbie: The Princess and the Popstar
- Keith Richrock - Viva Rock Vegas
- Kelly Canter - Country Strong
- Kermit the Frog - The Muppet Show, Muppets Tonight, The Jim Henson Hour
- Kid Chameleon - Scott Pilgrim
- Kids Incorporated
- King Thunder - Quantum Leap
- The Kingfishers - The Comic Strip, Street Frogs
- The Kinky Wizards - High Fidelity
- Kiss My Ass - Dead Man on Campus
- Kissy Boots - Homestar Runner
- Kitten Kaboodle - TaleSpin
- The Klapper Family - A Mighty Wind
- Kleen Kutt Kids - 21 Jump Street
- Knight Shade and The Shadowettes, My Little Pony, "Bright Lights" Part 4
- Korki Buchek - Da Ali G Show / Borat
- Kovenant - The Simpsons (Note: There is a real band called The Kovenant.)
- Sugar Kane Kowalcyzk - Some Like It Hot (1959)
- Barney Kurtz - I Love Lucy
- Krystalnacht - Watchmen
Read more about this topic: List Of Fictional Music Groups