It's the scariest part of college this side of finding your freshman roommate has a thing for burning incense.

A recruitment video made by the University of Texas' Alpha Delta Pi sorority has gone viral quicker than the time it takes for a credit card company to sign up a student rushing to Econ 101.

Sororities making recruitment videos is nothing new, but this one has connected with people online because it scares the pants off of them -- the rhythmic moving of the shoulders, the clapping done perfectly in sync, the singing bordering on shouting and the last row of just hands clapping is a formula for making sure you will remember this and see it in your mind for the rest of your days.

The clip even spawned another video that went viral, in which we get to imagine the girls really are opening the doors to the underworld.