The moment you insert some Rihanna music in your video, that video cannot be owned exclusively by you because you do not own the licensing rights to the music. So unless you pay for it, (way too much money!), you must create your own music, and most of us lack that particular talent, so then your only other choice is royalty free, and/or creative commons music. Using this type of music and in most cases crediting the artist, gives you the freedom to do what you want with your video. Of course there are varying degrees of common creative and ownership licenses, but usually the source of your music will provide you with details. Royalty free music when purchased does not even require credits, because you own the music once it is paid for. In this case you can even sell your video without issue. Youtube has sophisticated software embedded where they can troll for licensed music. Copyright music is flagged, you get a strike against your account with the possibility of having your video taken down.
Creative commons is more in the spirit of “go ahead and use the material – as long as you give the proper credits” – it is a sharing community, one where credit is given where credit is due. http://creativecommons.org/
See below for Creative Commons music.
http://sonnyboo.com/music/music.htm
http://archive.org/details/netlabels
http://www.pacdv.com/sounds/free-music.html
http://incompetech.com/m/c/royalty-free/
http://www.publicdomain4u.com/
See below for Royalty Free music
http://capoproductionsmusic.com/products-page/music-collections/?gclid=CNynqdDJpbACFQa-zAodonKSaw (for serious film makers)
http://www.themusicase.com/ low cost high quality – 12-20 euro
