There are 2 standard music bio plots.
Born to adversity but never losing the dream of stardom, musical genius, against all odds, hits the big time then tragically dies.
That's the Biggie story. (Also Buddy Holly, La Bamba, Doors...)
#2 Born to adversity but never losing the dream of stardom, musical genius, against all odds, hits the big time, then is laid low by addiction, then makes dramatic come back.
Is there a rapper who fits this?