Who says high fashion can't work for a Halloween costume? Just take a cue from Hailey Bieber , who stepped out Sunday night for a Halloween party at The Peppermint Club in West Hollywood. Clad in a vampy Versace getup, the 25-year-old model arrived hand in hand with her husband, Justin Bieber , who put his affinity for "Sesame Street" on full display by showing up dressed in a bright-blue Cookie Monster costume. Bieber's bold Versace look consisted of a black harness bra that featured intricate cutouts at the front and a matching black miniskirt. To pull together her Halloween 'fit, she layered on the accessories, beginning with a bundle of belts stacked around her waist and hips. One belt spelled out "Versace" in gold capital letters, which complemented the gold garter belt that she wore around her right thigh. Another had a big gold belt buckle that played right into the overall black-and-gold theme that Bieber chose for the occasion. Beyond the ma...