Gackto-san is an incredibly talented performer. His musical styles include rock (I mean, ROCK), love songs and some stuff that may qualify as j-pop.
He's versatile and plays multiple instruments, including a host of asian stringed instruments. As an example, check out the shamisen performance from one of the concerts
here.. (
Needs audio, preferably loud).
And ya, he drives the girls wild.
Miyavi-san is a close second in talent, IMHO.