So I paused Star Trek to answer the phone, and when I went back to my computer I noticed that I had landed on a still of the representations of each character’s musical tastes.

As you can clearly see, Kirk’s air-guitaring is an obvious nod to his infatuation with hard core heavy metal. Bones’ Heart is clearly being Possessed by the emotional soul-wrenching ballads of Death Cab for Cutie, and after listening to a bunch of angsty-grunge, Scotty is feeling as though he’s been kicked in the nads by The Man. And of course, Mr. Spock - as ever - refuses to stop expressing his unyielding infatuation with Krautrock. 

From Season 3, Episode 1: Spock’s Brain