Come December 1, Paris's Grand Palais will be transformed into a "fairy tale" for Sonia Rykiel's for H&M fashion show. The designer will create her own Parisian fantasy including a 25-30 metre Eiffel Tower to unveil her new collection for the retailer. Watch the video above for a special behind-the-scenes preview of the show, as narrated by event producer Etienne Russo.