In one of the most intriguing highlights, Gabriel took over a Sting tune, "If You Love Somebody Set Them Free," which always tried way too hard, and improved it, swampy, soulful. Sting put a wry spin on verses in "No Self Control." "Kiss That Frog" got a Sting arrangement, with Sting singing lead. It was fascinating to hear Sting's words as sung by Gabriel and vice versa. For two fascinating, often superb hours, they team-sang, soloed, or laid out, depending on the tune, in a show that combined the offhand and the high-tech. Gabriel was in some weird black running suit, which one attendant called "Pope Francis noir." Backed by a "blue team" and a "red team" of a dozen fabulous musicians, on a stage stacked with drum sets and keyboards, they played it straight-up: hits, anthems, dance tunes, and deep tracks. Sting seemed changeless: He and the gym have been very good to each other. In a buddy-buddy chat at the start of the show, Gabriel had an answer: "We weren't sure how we're going to do this. So what are these old gents going to do?" The question Sunday night, before an adulatory crowd at BB&T Pavilion, was: "OK, Peter Gabriel, 66, and Sting, 64, are here on tour together, the Rock Paper Scissors Tour.