Is it offensive if a white person uses the N word when rapping lyrics to someone elses song?

I personally could ,but I would chose not to
My friends of color know there is not a racist bone in my body
so I can get away with things most white people can't
but they know I only say things and do things that make them laugh
so thats the text its taken in

but as a rule if it could be perceived as racist
I just wouldn't do it ,
I sing a lot of song that black people love ,especially old R&B
I leave the rap to them ,especially gangster rap
some of that stuff even they need to stop saying ,,or stop being offended by it when others do .
Music should pull down walls ,not cause them