Lest you think he's not a man of class and sophistication, Usher attended the traveling art show Art Basel at Miami's Vector Gallery last week. He must have forgotten to charge his phone fully before attending, however, as Gawker (link below) reported that he used a woman's vagina to charge his phone.
Honestly, I'm not even going to pretend to know what's going on here, but the [above] photo... seems to show some exhibition involving a naked woman and an iPhone charger, and Usher plugging his phone into an iPhone charger that is connected in some way to the woman's vagina.
Since Gawker subsequently refused to do any more research on what exactly is happening here, I visited the Vector Gallery's website only to find that Lena Marquise, the artist who is powering electronic devices with her snatch, & the exhibit's curator J.J. Brine basically refuse to discuss the project.