The N word in rap songs

Coming from a post I seen in CC, I was wondering everyone's opinions. So we're all obviously aware that in the majority of rap music the N word is used a lot. If somebody, of any race, is rapping along to the song, do you think it's wrong if they say the N word? Is it only okay if a black person does it or do you think it's okay if anyone does since it's just a song?

I just want to make it clear we're only talking about saying it when singing or rapping along to something. I don't think it's okay for people to say it in any other context.