It's a high-class problem, of course, but still a tough one: What do you wear to receive a lifetime-achievement award? What strikes the right tone of humility and gratitude? Prince, never one to shy away from excess or high heels or big floppy sleeves went with all three. His tunic, whose color palette echoed that of a vintage toothpaste tube, bore an image of a man who looked very much like the singer, as well as the glyph Prince used instead of his name for a while. At least he had a ready answer for the inevitable red-carpet question: Who are you wearing?