Redken creative consultant Guido Palau has a lock on the backstage beauty game. The coiffing star covers more ground than almost any of his peers come fashion month, which means we see him on a daily basis (often more than once). It also means that he’s in large part responsible for the season’s biggest hair trends, Fall 2011 being no exception. Among the styles that will surely be attributed to his skill with the scissors, brushes, and blow-dryers come September are ponytails (more on that in Friday’s The Look feature) and sideburns. Yes, sideburns. Shaved and sculpted masculine chops premiered at Dolce & Gabbana, but what really registered with us were the wispy tendrils he razor-cut at Yves Saint Laurent to complement the models’ “little boy knots,” as well as at Valentino, where he was after a girly, sixties vibe. Perhaps unsurprisingly, we spotted similar tufts of hair last night on Chloë Sevigny—a perpetual arbiter of cool and a frequent early adapter of some of fashion’s harder-to-pull-off trends. At Chanel’s Tribeca Film Festival dinner, the Big Love star curled two sections of hair above her ears for a similarly whimsical effect. What do you think of her runway-to-reality effort?