If that’s what “nappy” is, then it started with Buckwheat on “The Lil’ Rascals”.
I thought I'd look it up...
"I Wish"
by Stevie Wonder
Looking back on when I
Was a little nappy headed boy
Then my only worry
Was for Christmas what would be my toy
Even though we sometimes
Would not get a thing
We were happy with the
Joy the day would bring