We all know that, when we were little, the part we always wanted to see in an animated movie was the villain song. They could be scary, they could be evil, but their apparitions and songs were most of the times the best parts of the movie. They rewarded us with pieces that we still enjoy and, sometimes, still send shivers down our spines.

Now, ask yourself: how do some of those moments translate into the realm of Equestria?