Yeah, that music box posted was inspired from the teaser trailer, where it's total darkness, save for a shining light on a spinning Jack in the box that was playing. At the point where the head was going to pop out, Chucky steps on it, and scowls, "Sorry, Jack. Chucky's back!" The next few times I saw that trailer, I had to cover my eyes, since the music playing meant Chucky was going to scare the fuck out of me.
If I close my eyes, I can still see Chucky's burned, disembodied head cursing me out from over the mantlepiece/ "Child's Play" fucked me up.