Mean Girls sums up 00s boom-time style: a Destiny’s Child-meets-Britney Spears silhouette of form-fitting tops and tiny A-line skirts, with brightly coloured, skin-tight cardigans, Juicy Couture tracksuit bottoms and dinky, lozenge-shaped handbags tucked neatly under armpits. Most terrible of all? Slogan T-shirts emblazoned with phrases such as “Bling Bling”, just in case the desired effect wasn’t clear enough already.