Culture Clash
Episode Synopsis: Video and Anthony Julian recommend a video artist named Fitzgerald Beck to direct the next Jem and the Holograms video. The artist is subsequently framed for diamond smuggling when his sculptures explode the evidence on-stage. 
First appears in Culture Clash and again in:
First appears in Culture Clash and again in: Hollywood Jem Part 1.
Model sheet number Unknown, maybe J-55?
Hasbro did not produce this fashion.
Trivia Kimber, Aja, and Shana each have recoloured versions of this fashion.

I Believe in Happy Endings Kimber
Makes its first and only appearance in Culture Clash.
Model sheet number K-57
Hasbro did not produce this fashion.
Trivia Jem, Aja, and Shana each have recoloured versions of this fashion.
I Believe in Happy Endings Aja
First appears in Culture Clash and again in: Journey Through Time, Britrock, Straight From the Heart
Model sheet number Unknown
Hasbro did not produce this fashion.
Trivia Kimber, Jem, and Shana each have recoloured versions of this fashion.
I Believe in Happy Endings Shana
First appears in Culture Clash and again in: The Bands Break Up.
Model sheet number Unknown
Hasbro did not produce this fashion.
Trivia Kimber, Aja, and Jem each have recoloured versions of this fashion.
Shana "In Stitches" Style shirt dress
First appears in Culture Clash and again in: One Jem Too Many, Danse Time, Britrock, Video Wars.
Model sheet number Unknown
Hasbro did not produce this fashion.
Comments As it's shown in the group of the others, I get the impression that this was Shana's "In Stitches" fashion, and would have been dyed black by a Misfit... had there been a fourth Misfit that needed to do it :)
Aja Culture Clash outfit
First appears in Culture Clash and again in: Video Wars.
Model sheet number Unknown
Hasbro did not produce this fashion.
Trivia Jem, Kimber, Raya and Shana each have recoloured versions of this fashion.
Shana Culture Clash outfit
First appears in Culture Clash and again in: Video Wars.
Model sheet number Unknown
Hasbro did not produce this fashion.
Trivia Jem, Kimber, Raya and Aja each have recoloured versions of this fashion.
Jem Culture Clash outfit
First appears in Culture Clash and again in: The Bands Break Up, Journey Through Time, Hollywood Jem Part 1, Hollywood Jem Part 2 (reused footage), Video Wars.
Model sheet number J-58
Hasbro did not produce this fashion.
Trivia Kimber, Aja, Raya and Shana each have recoloured versions of this fashion.
Kimber Culture Clash outfit
First appears in Culture Clash and again in: The Talent Search Part 1, Video Wars, Beauty and the Rock Promoter.
Model sheet number K-60
Hasbro did not produce this fashion.
Trivia Jem, Aja, Raya and Shana each have recoloured versions of this fashion.

Also featured in this episode (debuted earlier in the series) are the following fashions, not including recaps:

Kimber Yellow/Blue Blazer outfit Shana Yellow Power Suit Jem Stars/Stripes Power Suit Aja Red/Orange/White Blazer Roxy original outfit (Revised) Stormer Original Outfit
Pizzazz's Original outfit (Revised) Video Original Outfit Up & Rockin' (Jem) Kimber Broadway Magic stage dress Aja Broadway Magic stage dress Video Starbright Party Dress
Shana Broadway Magic stage dress Kimber In Stitches turquoise shorts- suit Jem In Stitches lavender pant suit Aja In Stitches Dress Jem 50's Cardigan outfit Pizzazz "I Am A Giant"
Stormer "I am A Giant" Roxy  "I am A Giant" Limo Driver disguise Stormer Jem Original Outfit (Revised) Aja Original Outfit Shana Original Outfit
Kimber Original Outfit Video Red Dress Jem Pink/Orange Pantsuit Music in the Air (?) Kimber Shirt & Tie Pantsuit Shana Ruffled Blouse Pantsuit

Back To Jem Episode 24: The Jem Jam Part 2

On To Jem Episode 26: Glitter and Gold