To hell with the 1950s. If you’ve got a time machine, a demented interest in sociology, and access to the 20th century musical acts of your choice, I say grab hold of Snoop, Brittney, and Kid Rock and drop them off in, say, London circa 1575. Let’s see how the Elizabethans react to the “cream” of modern music. 16th century England being in many ways a more civilized society than our own, Kid Rock would no doubt be immediatly burned at the stake. Brittney would fast find herself walking the streets of Whitechapel, so no real change for her. Snoop, however, would probably fit in just fine, especially once he learned to lay down his beats in iambic.
And if that didn’t work out, Snoop could be Britney’s pimp.
I’ve often wondered about something similar to this, but to me it was always more about what would happen if you plopped a band like, say, Kiss or Metallica in the middle of frontier America (think “Little House on the Prairie” days). Leaving aside the fact that none of their electric instruments would work (let’s assume they all have really good battery-powered generators or something), how would middle america circa 1850 or so respond to heavy metal?
I mean…at least the folks in the 1950s would likely still recognize modern rock as music, albeit weird music. But would the 1850-ers even have a frame of reference for heavy metal music? Would they even consider it music? Would any of the little frontier boys have any chance at all of becoming headbangers? 
You’ve never heard Apocalyptica, have you?
Read Mozart in Mirrorshades?
Listened to Bach or Beethoven?
Trust me, heavy metal, at certain points, becomes a lot closer to classical music than it has any right to.