I am going to make a prediction, though: Olivia Dean, the old-souled and refreshingly jubilant British singer-songwriter, will take home the trophy — as she should. Dean has been music’s most delightful, unexpected breakout star of the past year. Though her warm and unabashedly romantic LP “The Art of Loving” doesn’t conform to any of pop’s recent trends, it’s still found a large audience and spawned two hit singles: the fleet-footed “Man I Need” and the bossa nova-inflected “So Easy (to Fall in Love),” both currently in the Top 20 of the Billboard Hot 100.