Not sure what him being black has anything to do w/ it, but....
(sorry for the obvious answer - that's what I did anyways)
Singing is hard, though. I used to think it was easy, and still don't think I'm very good at it, but a lot of it is confidence as well. Also, one important thing I learned during lessons is learning to breathe properly, filling your lungs with air, pushing your diaphragm down and letting that process do the work, rather than trying to force the words through your passages, which is what I used to do and still tend to out of bad habit. It's important to get a deep breath before belting it out, though - it'll come out more naturally that way.
Take some lessons - it's worth it, and was kind of embarassing for me at first, singing in front of some guy in a quiet room and all, but I think that was good for me as well, and could be for you too.
Play music, expand the mind, inspire...
"We must embrace pain and burn it as fuel for our journey" - Japanese poet Kenji Miyazawa