How do you add the Skittles logo to your Myspace mood icon?

On some of my friend's status updates, right next to their mood where you select a smiley icon, they have a Skittles S thing like this: a href="http://cms.myspacecdn.com/cms/SponsoredSmileys/Skittles/purple_skittles.png" rel="nofollow"http://cms.myspacecdn.com/cms/SponsoredS…/a and I'm just wondering how do you put it as your mood icon?