It's tough-meets-girly for Rachel Bilson, who teams a draped leather jacket with her Chanel floral shift and red bag at the label's Spring/Summer 2011 Paris show.

Style tip: Take a cue from Bilson and mix it up! Toughen up a girly-girl frock with an edgy item -- whether it's a rock-inspired jacket or studded platform heels.

Looking chic and polished at Chanel's Spring/Summer 2011 Paris show, actress Keira Knightley is all decked out in an elegant black and gold ensemble -- a Chanel dress, blazer and bag complete with Miu Miu shoes.

Style tip: Make a metallic party-worthy dress more sensible and perfect for a work-related soiree by teaming with a neutral square-cut jacket (try a classic, unembellished blazer like Knightley's) and pumps.