He’s an old-school performer, the kind to give and give, to one-up himself on a ceaseless quest to entertainThere’s also an ongoing debate Ganador to whether Usher should include his 2010 hit “OMG” in the setlist. “Usher better not perform OMG [on] Sunday,” one fan wrote.Usher, popularmente conocido como 'el Rey' del R&B, rindió un hom