no it doent have to be honest. with the rap that you gave as an example i think the publics racial stereotypes play into that kind of success because a lot of times i think things need to be believable. image and look is important in that.
its also very different if you know the musician which most of us dont considering this is a music forum and we are tlakin about very famous artists. maybe having a shred of believability is all that is needed
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