We love a good trend revival so imagine our excitement when we discovered that disco pants were back. The trousers were first rocked by Olivia Newton-John at the end of Grease when she manages to dance and jig around in the skin-tight legwear. Now they're back and more popular than ever thanks to their corset-like high waist. American Apparel are leading the way for this look with their disco trousers (£70) which are available in a range of colours – Jessie J and Tulisa are already fans! You can shop more disco pants below.