You've followed their outfits all year long, and now it's time to cast your vote for the celebrity with the chicest street style looks. Five lovely ladies stayed on our style radar throughout 2011: Zoe Saldana showed off enviable laid-back, easy ensembles while Olivia Palermo stayed on top of her game with her trademark classic with a twist style and funky accessorizing skills. The ever-fashionable fixture Nicole Richie spent the year spicing up her usual boho-cool basics with standout footwear and vintage-inspired wide-brimmed hats, while Kate Bosworth kept us inspired with her eternally crisp, LA-chic aesthetic. Rachel Bilson caught our eye in a smart mix of ladylike-meets-casual combinations and unexpected separates. So, which street style maven wins your vote for the best looks of 2011?