Also depends on what Kai uses to get his hair to look the way it does. Back in the old OLD days, black people used lye to get their hair to straighten, and then shaped it into a "conk" or "pompadour." Another term, "fried dried and laid on the side."
I'm sure lye is not used any longer, but harsh chemicals yes.
And of course, most of that pony tail that Kai has, is more than likely extensions!