I talked before about about Musopen for a good place to access classical music that’s in the public domain. Now, I can’t do quite that well again, but I can give you an option to update your music selection. Funky Remixes is a site dedicated to, well, funky remixes; however, they do generally try to list music that uses creative commons licensing. So, even if you need something a little more lively to accompany your project, check out the site and see if anything will fit. You might find something totally sweet you could use. They even have mixes from some notables such as Beastie Boys, David Byrne, Le Tigre, The Rapture (a personal fav), and Danger Mouse & jemini. Oh yes, and they’re all free to download.
If you need a recommendation, then I’d start with “I’M FUNKYN’LOVE YOU” by DEEJAWU. It’s just groovy–er, funky.