So, you know how easy it is to get stuck in a denim rut? Well, Little Mix's Perrie Edwards (spotted after appearing on the Late Show With David Letterman in New York yesterday – go, girls!) has reworked her basics wardrobe in one move, by breaking out a pair of oversized mom jeans. Hey presto: her crop top, Converse, gap-yeah backpack and red lip combo is totally revived. Yes! Bonus points for the carpenter-style flap pockets, Pezza.