Should white people ever sing the N-word?

[Gerald]

The controversy over the use of the N-word has hit the headlines again after a white woman was booed at a Kendrick Lamar gig for singing it on stage.

The rapper http://www.bbc.co.uk/news/newsbeat-44209141 the woman to sing M.A.A.D City during his set at the Hangout Festival in Alabama.

But Lamar stopped her after she repeatedly used the N-word - which is heard multiple times in his song.

As the crowd reacted angrily, Kendrick told the fan: "You gotta bleep one single word."

The N-word is a derogatory term; a racial slur which was used to refer to and insult black slaves, but today it is used prominently in hip-hop

http://www.bbc.com/news/entertainment-arts-44209119

I think that a well-behaved language is best and is relevant for maintaining good communication, but in the entertainment industry, N is flowing.