J
- J-Rock - Nickelodeon Magazine May 2001 He Can't Hardly Wait For Her To Get Over It, prank movie cover
- Jack The Rapper - MAD Magazine, December 1991, "The Harmonious Homeboy's Homicide"
- Jack Walla - Rocko's Modern Life
- Mouling Jackson - Americathon
- Jammy J - The Adventures of Jimmy Neutron: Boy Genius
- Mick Jadestone - The Flintstones, The Pebbles and Bamm-Bamm Show
- Mick Jagged - Viva Rock Vegas
- Rayna James - Nashville (2012 series)
- Janel - Fashion Star Fillies toy line, Sassy Sixteens line
- Janis - Fashion Star Fillies toy line, Song Star Sixteens line
- Jareth - Labyrinth
- Jason and The Cruisers - Growing Pains
- Jason and the Pussycats - Fairly Oddparents
- "Double J" Jeff Jarrett - World Wrestling Entertainment (WWE)
- Jazzy Goodtimes Band - The Simpsons
- Barbara Jean - Nashville
- Jeffster! - Chuck
- Jem and the Holograms - Jem
- Jenson - New Year's Eve
- Jeremy and the Incidentals - Phineas and Ferb
- Jerm and The Hollowgrams - Cracked #225 "Interview With The Doll Queen"
- Jerry - Some Like It Hot (1959)
- Jesse and the Rippers - Full House
- Jet Screamer - The Jetsons
- The Jerk Offs - "Nick and Norah's Infinite Playlist"
- Jewelry - Nickelodeon Magazine May 1997 "Sing-a-Wrong"
- Jim - Mighty Mouse: The New Adventures
- Jim Crow - The Invisibles
- Jimmy- "Degrassi: The Next Generation"
- Jjagged Bbanner - Frontier: Elite II (mentioned only in the manual) and Frontier: First Encounters
- Joanie And The Slashettes/Joanie And The Hep Cats - Married... With Children
- Joe - Some Like It Hot (1959)
- Joe Stereo & The Sex Kittens - Amazing Joy Buzzards
- Jocks Wa-Hey - The Young Person's Guide to Becoming a Rock Star
- John the Balladeer - also called Silver John, in stories by Manly Wade Wellman
- John Juan Twan - Saturday Night Live, "New Jack Thanksgiving"
- Johnny and the Deer Ticks - Johnny Bravo
- Johnny Casino and the Gamblers - Grease
- Johnny Mushroom and the Kingdoms - Stupid Mario Bros. (YouTube series).
- Johnny Zhivago - A Clockwork Orange
- John Smith and the Common Men - Doctor Who
- Jokers - Rock and Roll Hoochie Koo by Rick Derringer
- Jolene - Fashion Star Fillies toy line, Song Star Sixteens line
- Jolly Green Giants - Wayne's World
- Jonathan Keith - Growing Pains
- JONAS - JONAS
- Jonny Karizma - Rocko's Modern Life
- Jordan Cahill - Stuck in the Suburbs
- Josie and the Pussycats
- Juanita - I Love Lucy
- The Juicy Fruits - Phantom of the Paradise
- The Juggs - Married...with Children
- Jungle Fever - Zoey 101
- The Jungus Brothers - Monster High
- The Junkyard Band - Fat Albert and the Cosby Kids
- JaMarcus & the Junior Hi-lites
Read more about this topic: List Of Fictional Music Groups