CELEBRITY LOOKS OF THE WEEK - KATE, KOURTNEY, COBIE AND MORE!

This week's fashion roundup has celebrities in their finest red carpet-ready frocks. We're loving that effortless chic seemed to be the theme that hit the latest movie premieres and industry events from NYC to Shanghai. Jennifer Lopez and Leighton Meester took their fashion know-how out of the states in a body-con number and a floaty confection, respectively, while Kourtney Kardashian fittingly bathed her bump in a feminine black baby doll dress. From Kate Beckinsale's thigh-grazing slit on her little black stunner to Cobie Smulders' floor-sweeping tangerine number, this week's looks have me wishing I had some red carpet events of my own to go to. Click through to see the top celeb looks of the week.

Kate Beckingsale wore a J. Mendel number and nude Nicholas Kirkwood heels to the Cancun photo call for her new movie Total Recall.

Jennifer Lopez attended a press conference at Boulevard3 Club in color-blocked, second-skin Lanvin with crystal snake wrap and Giuseppe Zanott ankle-strap pumps.

Kourtney Kardashian stepped out in a black Gomez-Garcia baby doll dress and neon accessories for the E! Upfront press conference in NYC.

Cobie Smulders turned heads at the Tribeca Film Festival in NYC in a tangerine Reem Acra gown with embellished cap sleeves, a Judith Leiber clutch and gold accessories by H. Stern and Ippolita.

Leighton Meester rocked a black lace and tulle Marchesa frock with satin pumps and Harry Winston jewels at the opening of two Harry Winston stores in Shanghai.