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- The Cadburys - This Is Spinal Tap
- Calgona - madTV, "Calgona: 'Keep Up With Your Love'"
- The California Raisins - The California Raisins
- California Dreams - California Dreams
- Camel Lips - Serial Mom
- Cancer Boy - The Kids In The Hall: Brain Candy
- Cane and The Stubborn Stains - King Of The Hill
- Captain Bart and The Tequila Mockingbirds - The Simpsons
- Captain Cloud and The Rainbow Telegraph - Get Crazy
- Captain Geech and The Shrimp Shack Shooters (a fictional band within a movie about a fictional band) - That Thing You Do!
- Billy Carlos - War of the Worlds (played by the first season's real music composer Billy Thorpe)
- Susie Carmichael - All Grown Up
- Tina Carlyle - The Mask
- The Carrie Nations - Beyond The Valley Of The Dolls
- Andrew Carver - Showgirls
- Cassidy and Her Band - Austin and Ally
- Cassiopeia - Duck Dodgers
- The Cat - Looney Toons Notes To You
- Danny Cat - Cats Don't Dance
- Sawyer Cat - Cats Don't Dance
- Stimpson J. Cat - Ren and Stimpy
- The Cattanooga Cats
- Catcha Legsgonalot - Bonkers (TV show)
- CB4
- Speedy Cerviche & The Little Tokyo Felines - Samurai Pizza Cats
- CFC - Transmetropolitan
- CHAM! - Perfect Blue
- The Chan Clan - The Amazing Chan and the Chan Clan
- Chanteclair Rooster - Rock-A-Doodle
- The Chantrellines - That Thing You Do!
- Laura Charles - The Last Dragon
- Charlie Daniels Band Practice - ] April 1997 I Was Country When I Was In School Pull Out Prank CD cover
- Che & Los Calavera Muertos - El Tigre: The Adventures of Manny Rivera
- Lila Cheney - New Mutants, X-Men
- Cherry Bomb - Howard The Duck
- Cheetah Girls - The Cheetah Girls
- The Chestnut Sisters - The Fastest Guitar Alive
- Johnny Chess - Doctor Who novels
- Chemical Toilet - It's Always Sunny In Philadelphia
- Cherry Jam - Strawberry Shortcake (2009)
- Chicks International - Be Cool
- Chief Kamanawanalea and His Royal Macadamia Nuts - The Turtles Present the Battle of the Bands
- Childish An Hour - To Heart and Comic Party
- China Parks - Ant Farm
- The Chippettes - Alvin and The Chipmunks
- Chip Skylark - The Fairly Odd Parents
- Chock Fulla Notes - NewsRadio
- Sherrie Christian - Rock of Ages
- Chrome Koran - Virtual Light
- Chum Bukkit - The Weekenders
- Chutzpah - Chutzpah, This Is
- Ciji Dunne - Knots Landing
- Cindy Brady's Lipstick Blowout - Nickelodeon Magazine October 2000, "The Return of the Band-O-Matic"
- Circus Monkey - Bandwagon
- Citizen Dick - Singles
- City Death - Decalogue X
- Clam Dandy - Prey For Rock & Roll
- The Clash At Demonhead - Scott Pilgrim
- Clara Cluck - "Orphan's Benefit", Walt Disney short
- Clarence Dudley - Chip 'n Dale Rescue Rangers, "A Case of Stage Blight"
- The Clarenettes - Beetlejuice, "The Brides of Funkenstein"
- Clarice Chipmunk - Chip n' Dale, "Two Chips and A Miss"
- Clark Kent and His Supermen - The Illuminatus! Trilogy
- The Cleveland Bays - My Little Pony Tales
- Tony Clifton
- Closed For Renovations - Off The Mark
- Cocktail Frank and His Weenies - Weinerville
- Cold Slither - G.I. Joe
- Wade Collins - iCarly
- Johnny Cologne - Red Dwarf
- James Colt - Hearts of Fire
- Comic Strips - A Clockwork Orange
- Colin and The Psycho-Megas - Amstrad Action
- Comes The Trickster - Doctor Who New Adventures: The Also People
- The Commitments
- The Common Denominators - Reggie and the Full Effect release Promotional Copy
- Connect 3 - Camp Rock
- The Condemned - The Buddha of Suburbia
- Conroy Bumpus - Sam & Max Hit The Road
- Cool Tapes - Homestar Runner
- Cooler - Pound Puppies
- Coq Roq - Burger King commercials
- Luann Corbin - In The Heat of The Night
- Cory & The Boys - That's So Raven
- Cosmic Cosmo - The Jetsons: The Movie
- The Country Bears - The Country Bears
- The Cowlorado Kid - Wild West C.O.W. Boys of Moo Mesa
- The Cowtones - Family Guy
- Dewey Cox - Walk Hard: The Dewey Cox Story
- Ron Cox - Jem, parody of Mick Jagger, "The Jem Jam" Parts 1 and 2
- Coyote Springs - Reservation Blues
- Craig - Degrassi: The Next Generation
- Crash - Bratz Rock Angelz
- Crash And The Boys - Scott Pilgrim
- Crash and The Creeps - Power Rangers Turbo
- Rachel Crawfish - Family Matters
- Rachel Crawford - Family Matters
- Creation - Freaks and Geeks
- The Creep - Galaxy High School
- Creme Brulèe - The League of Gentlemen
- The Crescendolls - Interstella 5555: The 5tory of the 5ecret 5tar 5ystem
- Crisis of Conformity - Saturday Night Live, "Band Reunion at the Wedding"
- Sheryl Croak - Nickelodeon Magazine May 1997 "Sing-a-Wrong"
- Cross Criss - Saturday Night Live, "New Jack Thanksgiving"
- The Cross Fires - The Turtles Present the Battle of the Bands
- Crooked Buddhist Accountants On Crack - Permutation City
- The Crooner - 2012 Kayak.com commercials
- Crosby, Stills, Nash, Young, Gifted and Black - The Rutles
- Crucial Taunt - Wayne's World
- Crucifictorious - Friday Night Lights
- Crucifixion Junkies - Florida Roadkill, Hammerhead Ranch Motel
- The Crucifolks - Moral Orel
- Cube Squared - Tapeheads
- Cuddlefish - iCarly
- The Culps-Saturday Night Live
- The Curfew - Spook Country
- Cyberblind - Doctor Who New Adventures: The Also People
- Cyclops - A Clockwork Orange
- Cylon and Garfunkel - Futurama
- Cynthia - Rugrats, "The Rugrats Chanuakah Special"
- Bill Erase Cyrus - ] April 1997 I Was Country When I Was In School Pull Out Prank CD cover
Read more about this topic: List Of Fictional Music Groups