Routeprovider, angular js, "welcome page"

Have just finished an awesome angular js app. Now I want to do a welome page from where you can start the application. Problem is I'm not really sure how to solve this in my routeprovider since my index.html is combined with dynamically nested views and static content. Is there anyway I can just point to a totally diffrent page (welcome.html) when url is on root (/)? 

$routeProvider
  .when('/', {
    //send me to diffrent page
  });

Sure, you can do it like this: 

var myApp = angular.module('myApp', []).
  config(['$routeProvider', function($routeProvider) {
    $routeProvider.when('/', {templateUrl: 'welcome.html', controller: 'WelcomeController'});
    $routeProvider.when('/main', {templateUrl: 'index.html', controller: 'MainAppController'});
    $routeProvider.otherwise({redirectTo: '/'});
  }]);

This configuration will route all urls other then /main to welcome.html page.