You look so quirky,” says Jade Thirlwall, one quarter of Little Mix, when we meet at the band’s photoshoot in a London studio. Perhaps, with my Seventies record-producer hair and hard-earned wrinkles, it’s true that I may not look like the average Little Mix fan. But these four young, working-class women have had some pretty quirky looks themselves. Meeting in 2011 on the set of The X Factor and going on to become the most successful – and then the only – major girl band in the world, they sported black and white draughtboard chic in 2013, moved on to knee-high leather boots and multicoloured mayhem for 2016’s appropriately named Get Weird tour, and ended up in chains and PVC for 2017’s Glory Days.