Can U.K. Star Ed Sheeran Make It Big In The U.S.?

Ed Sheeran: Coming to a venue near you.

Ed Sheeran has never sold a physical album in the U.S., but you wouldn't have guessed it from his performance at Austin Music Hall last week.

The red-headed Brit whipped the crowd of 2,000-plus into a frenzy with his soaring vocals, spitfire flow and vigorous guitar playing—so vigorous, in fact, that he broke one of his guitar strings. No matter. Sheeran kept playing anyway, and the audience seemed too wrapped up in his performance to even notice. And...