There's a lot of free royalty music you can use for your animations/games without the risk of getting them unpublished by a copyright infringement (as long as you credit them properly) that the own site offers in the "Creator Resources" page - here's the link, in case you might be interested in checking it out:
(https://www.newgrounds.com/wiki/creator-resources/music-and-audio-resources/royalty-free-music)
BlueMonday1984
If its under CC-BY-SA, you won't need to censor it, but you'd need to put your anim under the same license.
Word of advice: Check the Audio Portal for music - there's a treasure trove of music there you can use without issue.