Demi Lovato snapped a picture before attending a photocall for “Smurfs: The Lost Village” last week wearing the Alexander McQueen Snakeskin-Effect Leather A-Line Midi Dress ($1,972.00, wrong color), Francesco Russo Patent Leather Sling Back Pumps ($486.00), and Ray-Ban Aviator Flash Lenses Gradient Sunglasses ($175.00).