I am new to Angular JS. I am trying to start with the basic Hello World Program. Here is my plunk <http://plnkr.co/edit/uW1fHB7a17gpvn341sn3?p=preview>.

```js
var MainController = function($scope){
  $scope.message = "Hello, Angular!";
}
```

```html
<html ng-app>

<head>
  <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.5/angular.min.js"></script>
  <link rel="stylesheet" href="style.css" />
  <script src="script.js"></script>
</head>

<body>
  <div ng-controller="MainController">
    <h1>{{message}}</h1>
  </div>
</body>

</html>
```

I created a simple controller and has a single model binding in that. It is not working for me. I am not able to get what the problem is. Can anybody please help me in getting started.