Ahead of her performance on the Victoria's Secret catwalk [1] tonight, Selena Gomez [2] is already setting a seriously sexy tone with her arrival on the pink carpet. The singer stepped out in a leather-studded gown with lace-ups and an unzipped side slit that revealed a whole lot of leg. While the looks only stand to get more scandalous as the runway unfolds, Selena's certainly doing her part to turn up the heat. Take a look at the look in full and you'll know just what we mean.