A function that sorts celebrity names by boob size

var celebs = [
  {
    name: "Beyonce Knowles",
    boob_size: "DD"
  },
  {
    name: "Kelly Clarkson",
    boob_size: "B"
  },
  {
    name: "Sophie Rundle",
    boob_size: "A"
  }
];

var sorted_celebs = celebs.sort(function(a, b) {
  return a.boob_size > b.boob_size;
});