Yeah, well, Zeppelin were exceptional in perhaps all ways.
Robert Plant was an unknown just singing around with perhaps the greatest fricking drummer of all-time (at least legendary, for sure). And Plant is also just incredible.
John Paul Jones was a multi-instrumentalist session player of renown, and Jimmy Page was already famous.
It's one of those stories where the very first time they played together they just looked around at each other, nodded, and knew that it was special.
Plus, they did the 2nd album while touring the first one (within a year, IIRC).
And, wow, that second album has "What Is And What Should Never Be" and, my all-time favorite, "Ramble On". Just epic. And then, later, "Kashmir", "The Rain Song", the list goes on and on and on.
And they also back up my point that alcohol is a pox upon humanity. RIP Bonzo. The alcohol-encouraging cultures on Earth are insane, but the ones that forbid it tend to be even worse in many ways. What a troubled bunch of kinda-monkeys we are, huh? Common sense just ain't very common.