Thanks to Bradley Wiggins’ success at the London 2012 Olympics, massive sideburns threatened a comeback for about five minutes, until, mercifully, everyone realised mutton chops should remain the preserve of eccentric athletes and ageing glam rockers. Two years later, however, sidies are back on the agenda (albeit in a slimmer, more refined form) and are sported by many a rakish A-lister, including Zac Efron and Justin Theroux. Understandably, this has changed our stance on them somewhat.