Our fave red-carpet trend? Sharply tailored suits. A-listers are giving the gowns a rest and stepping out in mega menswear-inspired looks, and we dig it. The latest babe to give us suit envy is actress Emma Watson, who stopped by the Late Show with David Letterman last night rockin' Saint Laurent. The newly updated version of Saint Laurent's iconic tux is quickly becoming a serious cult item, with celeb fans including Angelina Jolie, Cara Delevingne and our ultimate hair crush, Mr Jared Leto. Wanna work a suit to the max? Keep the accessories super simple – and tie it all together with a red lip. Boom! You're in the club now. 

Learn how to stun in a suit here, with a little help from Cara, Suki and more.