Worst/ weirdest/ funniest pop culture reference (or easter egg) in a game?

[graykin]

There's this one Easter Egg in the old game Dungeon Siege, near the end of the game. I don't remember how you get to it, but there's a particular elevator you go down in this dark, menacing, slimy dungeon, and you suddenly find yourself in the middle of a discotheque.

Between the 70's music playing, the floor with the colored lights, a car that when you use actually bounces with the hydraulics, and a Top Hat with a feather you can actually wear. Not to mention the goblin-like monster with an afro and a leisure suit.

It was pretty damn funny when I saw it, to say the least.