My spring trip. what to pack?

I have a spring trip with my marching band. I am a junior. i have to room with 3 other guys. I still like to wear the white fruit of the loom and hanes briefs. I am rooming with seniors. I only own briefs. I cant stand anything else. I wonder if i get made fun of or something. i cant stand boxers. The trip is a month away. Most of my friends wear boxers though so i normally sleep in my underwear. It will be like a social suicide if i did it. The colorguard knows that i wear them though because of my ex girlfriend. So embarring. I wonder if they spread it around?