How to add CC to a webform email? I'm using Drupal 7.

Is it possible to add a CC to a webform email?

I was using 

function theme_webform_mail_headers($variables) {
  $headers = array(
    'X-Mailer' =&gt; 'Drupal Webform (PHP/' . phpversion() . ')',
  );
  return $headers;
}


changing it with

    function MYTHEME_webform_mail_headers($variables) {
      $headers = array(
'CC' =&gt; 'ccmeail@domain.com', 'X-Mailer' =&gt; 'Drupal Webform (PHP/'. phpversion() .')',
 );
      return $headers;
    }


It does not work, I've cleared all the chaches and it does not add the CC.
How could I add the CC?

Thanks in advance.
Just posting this for future viewers:

You can add a hook to the theme_webform_mail_headers in your theme's template.php

function mytheme_webform_mail_headers($variables) {
    $headers = array(
    'X-Mailer' =&gt; 'Drupal Webform (PHP/' . phpversion() . ')',
    );

    $headers['cc'] = 'email@example.com';

    return $headers;
}