This Week's Top 5 Celebrity Beauty Looks from Jessica Alba, Alexa Chung, Olivia Palermo & more!

From the front row at 2012 Fall New York Fashion Week to the red carpet premiere of Wanderlust, there's been no shortage of stellar celebrity beauty looks to emulate this week. Those on our must-try list? F'row regular Olivia Palermo donned yet another smoky eye and lashings of lashes, Alexa Chung styled her tresses in textured waves at the ELLE Style Awards after party and Jessica Alba sported the perfect cherry red lipstick shade, which we'll be adding to our beauty bag pronto! Step inside to see who else made our top five this week . . .