Kim Kardashian [1] joined Charlotte Tilbury to discuss the power of makeup at the Vogue festival in London — but it was her dress, not her killer contouring, that stole the spotlight. Though Kanye West [2] took the usual casual route [3] in dark separates and work boots, Kim pulled out all the stops, slipping into one of the most flattering cocktail numbers we've ever seen.

The gauzy, champagne-colored design was cinched at the waist to highlight Kim's curves and emphasize the breezy bell shape of her sleeves [4]. But glitzy sequins and a distressed, unfinished hem kept things trendy, calling for minimal accessories. Kim slipped into her classic ankle-strap heels and took the stage, completely embracing the spotlight. In this lovely look, it was certainly well deserved.