So I was wondering where I could find an artist who can be epic but still be appropriate for our background music.
Edit: I think I put this in the wrong section
Besides people you might find in your school’s music department and personal contacts your best bet is probably to Google “Royality Free Music.”
I’ll echo what Dale said. It’s important to make sure that the music you select is free and clear to be used in your submission.
Per the Administrative Manual (Page 42, Section 6):
"Copyright
- If using copyrighted music must have written permission
- If using Creative Commons Music (CCM) online, the music must be used in accordance with the appropriate license and properly attributed.
- Music may not contain offensive or suggestive language"
To quote Creativecommons.com:
*"Creative Commons is a new system, built upon current copyright law, that allows you to legally use “some rights reserved” music, movies, images, and other content — all for free. CC offers free copyright licenses that anyone can use (without a lawyer) to mark their creative work with the freedoms they want it to carry. For instance, a musician would use a Creative Commons license to allow people to legally share her songs online, make copies for friends, or even use them in videos or other compositions.
…]Most importantly, you need to use music that is not licensed under a No Derivative Works license. This means that the musician doesn’t want you to change, transform, or make a derivative work using their music. Under CC licenses, synching the music to images amounts to transforming the music, so you can’t legally use a song under a CC No Derivative Works license in your video." *
Here’s some resources I’ve found helpful:
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http://incompetech.com/music/royalty-free/ (My personal favorite)
Hope that helps! As for artist suggestions, I don’t really have anything specific. I know you want it to be exciting music, but make sure that it doesn’t take any focus away from what you want the viewers to focus on. If somebody is speaking, the background music should be just that: in the background. Good luck 
When I was a student I found a YouTube creator whose music I really liked and asked them for permission to use a specific song via email. I was pretty lucky that they responded but if there are any independent creators you already like, that’s an option.
Also, instrumental music might be the safest bet for being appropriate and not distracting.