My website stream music, It's free for everyone to hear but I want to set the copyright of the song to my site name so that everyone can see it on the media player such as "Copyright http://mysite.com" just like most of the music sites do. And how can I change the existing copyright of a song? Please help

My website stream music, It's free for everyone to hear but I want to set the copyright of the song to my site name so that everyone can see it on the media player such as "Copyright http://mysite.com" just like most of the music sites do. And how can I change the existing copyright of a song? Please help

Who owns the copyright? You can't change the existing copyright of a song, that would be illegal. It could also be illegal to play music that you do not own the copyright to. Unless you have permission to do so.