There was a grooup called US3 I liked that rapped. They did it to a jazz music label Blue Note Records.
I also let my son put his music on my computer once when he was moving and most of it ended up on my ipod. Now I thought I deleted all of it, but one day at work a rap song came on that while not my style of music was of high quality. The rapper obviously knew how to right and I was impressed enough to look to see who it was. Tupac Shakur. Again, not my style, but I could appreciate his talent.