Jquery validate plugin how to add error class to label

Using the jquery validate plugin and I'm trying to override it's default behavior. this is an example of my html:

<table>
<tr>
  <td>
    <label for="my-input>Name</label>
  </td>
</tr>
<tr>
  <td>
    <input type="text" class="required" id="my-input />
  </td>
</tr>
</table>

All I want the valadate to do is add the class .error to the existing label, and then remove it once the field passes validation.

Thanks.