There are 75 band references in this picture

[glowbelly]

http://virgindigital.com/eymm.htm

if you go there and look at the poster you'll notice that a fairly large portion of the left of it is cut out of the one that was posted here.

missing:

pet shop boys
scorpions
cake
skinny puppy

and i think the hare krishna's might represent nirvana
and the hill in the back? cypress hill. maybe.