That's just the post-punk attire. Nerdy skinny suit vibes (part of the inspiration for skinny jeans). Not really the same. Go check out pics of Devo, Joy Division, Television, Bowie, Iggy Pop from the late 70s. (Same reason bands like Interpol and She Wants Revenge dressed in suits 30 years later). But you could really replace Zeppelin with any American band of the similar ilk from the same era (Blue Cheer comes to mind) and you'll find similar digs. Frat master Warhol Either way, i posted that meme because it was pretty funny and this thread happened to be revived out of nowhere as it came up on my feed. I don't believe the "fratty/yuppie" style is as ubiquitous as you think but I will agree it's been on a rotation for about 60 years.