Just the fact that you utilized the word jerk, tells me you are not very intelligent.  Give me examples of other singers you think are great.  Have you ever even listened to Opera or Classical music.  How about Phyllis Hyman, Chick Corea, Bill Cobham, Mother's Finest. I am confident you are too young to even know these musicans, but if you haven't listened to them - then you do not know good music.  Sorry.