Caroline Sieber joined Erin Wasson on the red carpet last night for the Soiree Chopard ‘Mystery Party’ during Cannes Film Festival.

The stylist wore an Alessandra Rich Spring 2012 dress.

Her blue micro paillette column dress features an open back with long polka dot ribbons.

This is a cute, unexpected twist to a seductive evening look.

A black satin clutch, matching pumps and Chopard jewels provided the finishing touches.

It’s a shame that the stylist wasn’t more creative with her accessories.

You can buy Caroline’s Alessandra Rich gown without the open back and bow accents from Net-A-Porter.com.

Credit: Getty & Alessandra Rich