Solo performance is a damn versatile medium. George Watsky is a poet and rapper in his mid-twenties. Though he has appeared on television and rocks lots of new media (his YouTube channel is widely viewed) he has put together several solo theatre pieces over the last few years.
Here's a good article describing a recent show in Boston that combined audience participation (through text message surveys) and the overall format of the show. Here's some of Watsky in performance..
On a personal note, his album "A New Kind of Sexy" on his Bandcamp page is available for purchase at a wonderful name-your-price rate. Highly recommended if you are into what Watsky does.