Olivia Palermo is known for her killer personal style, and last night at Topshop in New York, Olivia, outfitted in a festively eclectic ensemble composed of a gorgeous chartreuse, pleated maxi skirt, sparkly belted sweater, burgundy velvet heels, and feather-adorned turban, shared her holiday must haves and styling tips with shoppers. Plus, she also told us what she has planned for New Year's Eve with beau Johannes Huebl.