Il Divo means “divine male performer” in Italian, a fact that fans of the quartet declare true.

Since Simon Cowell brought the singers together a decade ago, six of their seven albums have climbed the Billboard charts and sold nearly 30 million. Freshly arrived in the U.S. from engagements in Mexico, they will stop at Wolf Trap to perform songs from “Wicked Game,” the latest recording that was two years in development.