Retarded question:

It's not considered "copyright" if you take a song and create your OWN remix, but then it'd be called, featured. But nonetheless; not copyrighted, correct? :T

I'll go and lie down in the corner now...

@W0LFB3AT5: I actually have a music lawyer in the close family, but I'm not exactly sure what you're asking.

But as long as you're not selling it, I think you'll be fine, cause people tend not to care unless money is involved.