documenting a rock shift

[parilafk]

I want to illustrate the shift in rock music from hair metal (86-90) to grunge/ alt rock (91-95) with songs in a playlist. 

This idea grew out of my pathetic attempt to try to describe to a 13-year old what Smashing Pumpkins' "Cherub Rock" sounded like to my ears which had been previously been assaulted with Poison and Warrant.  (My year timing may be a little off, so let me know that, too.)

So, I'm looking for illustrative songs on both sides of the shift -- "Unskinny Bop" by Warrant followed by "Territorial Pissings" by Nirvana, for example. I think "Unskinny" came out in '89 and "Pissings" in '92. Just three years separated them, but their music was so far apart, it may as well have been separated by decades.

Thanks in advance!