By Leah Ornstein - Breaking Celebrity News Style & Beauty Editor

From the red carpets to the streets, stars celebrated the end of 2011 and kicked off the beginning of 2012 in fab and faux pas fashion – and Breaking Celebrity News has the a la mode winners and sinners in our weekly feature.

Kim Kardashian closed out her not-so-stellar year by hosting a Sin City bash in sexy style. The newly single star steamed up her party at Tao nightclub, wearing a skintight dress with metallic Christian Louboutin peep-toes, while her sister Kourtney showed some leg at Chateau Nightclub’s New Year’s Eve Party wearing a slitty, sequined Diane Von Furstenberg gown with Christian Louboutin heels.