SmithKline Beecham has signed up popular Viz characters The Fat Slags to front its 5m advertising campaign for Lucozade Low Calorie. Breaking on June 20, the commercials show Tracey and Sandra ordering their latest male conquest to remove the low-calorie drink from their fridge as it does not fit in with their own calorie-laden lifestyle. The four ads, through Ogilvy & Mather, will run for four weeks and combine animation with live action. They will be accompanied by in-store promotions and a national sampling campaign. Lucozade Low Calorie was launched in March of this year.