This Michael Jackson foto contains
fedora, cappello di feltro, homburg, stetson, and stetson trilby.
There might also be
paglietta, livorno, panama, cappello panama, marinaio, skimmer, il cappello di paglia, and cappello di paglia.
I personally don't know much about the different types of vocal ranges and levels and all that, but this video is no matter what amazing! Michael's voice is his instrument <3