Congratulations to Diet Coke for taking a good looking girl, dressing her badly and making her front a terrible advertisement. Extra Kudos to Diet Coke for making a talented singer sound pretty atrocious. Absolutely nothing about Duffy’s appearance in the below Diet Coke advertisement was good. What on Earth were Diet Coke’s marketing team thinking they when this mound of shite together? This is one reason why you shouldn’t create a tasteless, carbonated drink with absolutely no nutritional value. Stick to Coca Cola. Look what Diet Coke did to Duffy!