You might have luck and it will get through or it might get blocked too. It all depends on how the rights management works. I've seen a lot of (music) videos and sometimes think that only registered music gets blocked. I've used royaltee free music (e.g. http://incompetech.com/music/royalty-free/ or other creative commons music) and didn't have problems so far. But I've heard other stories too.
It's not really clear how that works.
It's not really clear how that works.