I remember a band very closely resembling (as much as you could resemble anything in very simple EGA (or was it CGA?) environment) ZZ Top playing "Sharp Dressed Man" (in PC internal speaker beeps) in a Mos Eisley-like cantina in the original Space Quest 1. This was apparently unauthorized, and so the area in the updated 1990 (or so) VGA version featured an entirely different and fictional alien band and song instead.
I don't understand why GOG released parts 4-6 many months before parts 1-3, but I am glad that it at least secured a licence to publish these classics so many years (over 2 decades after the first game) later. Discovering all the creative ways of dying was for me one of the most fun aspects of the first two text-parser games, as well as of other Sierra On-Line games of the time like Leisure Suit Larry and King's Quest, and those of us who played these games to completion learned to save our games practically after every step long before that became the standard practice (in an F5 or F6 binding) in most PC first-person shooter single player campaigns.