Not sure how I missed this comment but yes, regulations on copyright material. Using local talent is great in theory until you find yourself on the wrong end of a copywrite claim. All music I use has to have a Licensed certificate of use, otherwise anyone can claim ownership, once a claim is made, regardless of if it is true or not, the video is removed.
Nothing sucks more than spending months to produce content then having it removed because of someone thinking its to close to their song or some one deciding that a video is too popular and then deciding after the fact they should have been paid more.
So no I dont just make this stuff up. This happens all the time, especially on You Tube, there are actual trolls that seek out content to claim as there own to try and get you tube to redirect earnings to them. So everything is documented and licensed.