Now that Taylor Swift has already proclaimed herself Queen of Wonderland, she could allow her redheaded footman to have some screen time. Ed Sheeran arrived on stage dressed in his version of formal attire (black T-shirt, black pants) to play his song ''The A-Team,'' backed by none other than Elton John. Their duet sounded very refined — whenever there's a piano involved, the Grammys might as well bedazzle the words ''IT'S CLASSY TIME'' across the bench, and they get extra sophistication points whenever the people playing that piano are British — but would it have killed these two golden-voiced gentlemen to up the drama a bit? As it is, the only real razzle-dazzle here belonged to the real star of the show: Sir Elton's rainbow-sparkle blazer. B-