U.S. — Hungry?<br /><br />Burger King is promoting the 'beauty of no artificial preservatives' with its new moldy burger ad. <br /><br />The ad begins with someone making a fresh burger to the sound of Dinah Washington's song 'What Difference A Day Makes', and then uses a time-lapse showing it rotting over 34 days. <br /><br />The fast-food juggernaut says the campaign is highlighting its decision to remove artificial preservatives from the product.<br /><br />On Burger King's Twitter account they said: "The beauty of real food is that it gets ugly."<br /><br />It plans to get rid of preservatives from the burger served in all of its restaurants this year.