This week the singularly named Usher – no mere R&B superstar or TV talent show judge, but surely the Renaissance Man Nonpareil – was announced as the headliner of November’s RNB Friday Live series of concerts across Australia. We shall be lucky to have him in our midst. Don’t take my word for it. No, really, there’s no need to take my word for it because the man will tell you himself. As he did in this illuminating conversation in the bowels of London’s O2 Arena in 2011. Wind