Tuesday night, Mary-Kate and Ashley Olsen brought out some of London’s biggest It girls — from singer Amy Winehouse to socialite Peaches Geldof — to show off their new high-end clothing The Row at Harvey Nichols. And while the twins predictably wore some outrageous accessories — check out Mary-Kate’s super-hairy jacket and Ashley’s S&M-style studded Christian Louboutin boots! — what we’re really liking is their suddenly straight hair! After years of signature messy waves, Mary-Kate and Ashley have gone straight and sleek, and it looks great! Ditto to their barely-there makeup. Not that we don’t love seeing Mary-Kate try out braided updos and Ashley working dark maroon lips, but the sisters look the best they have in years here. Tell us: What do you think of the Olsens’ straight and sleek look?