Hmm, interesting point Sam, I think the reason why he's considered R&B's front man is because he's really the only guy singer doing R&B music nowadays & he's getting the most attention as well. Though all of his songs do talk about sex, i think that if he'd change up some of his lyrics, he will definitley be in the same category as the likes of Usher & the OLD R. Kelly musically & comercially. IMO, he is sort of there, but not all the way, like i said his lyrics need to shift from sex to other subject matters.