AngularJS:Select with static options

function MyCntrl($scope) {
  $scope.colors = [
    {name:'black'},
    {name:'white'},
    {name:'red'},
    {name:'blue'},
    {name:'yellow'}
  ];
  $scope.color = $scope.colors[2]; // red
}

<!doctype html>
<html ng-app>
<head>
    <script data-require="angular.js@1.2.9" data-semver="1.2.9" src="http://code.angularjs.org/1.2.9/angular.js"></script>
    <script src="script.js"></script>
</head>
<body>
    <div ng-controller="MyCntrl">
      <select ng-model="color" ng-options="c.name for c in colors">
        <option value="">-- choose color --</option>
        <!-- ng-options get inserted here -->
        
        <!-- additional static options below -->
        <option value="grey">grey</option>
        <option value="orange">orange</option>
      </select>
    
      <hr/>
      Currently selected: {{ {selected_color:color}  }}
    </div>
</body>
</html>