I'm going to be loud to get back at my neighbors in the dorm.
Why are you wanting to get back at them?
They play loud music at all hours.
Have you tried talking with them? Sometimes, people may not be aware that the walls are so thin, and will put in earbuds/headphones if you just ask them. It's probably against your dorm's policy to make loud noises, and you could get in trouble as well if you take revenge by playing loud music.
Nah, I just want to be louder and get an asshole label.
Just because you have a bad neighbor doesn't mean you should be a bad neighbor as well. The people in the room on the other side of yours will be as annoyed by your music as you are by your neighbors.