Cobalt blue is one of the hottest colors right now — it's even made its way onto Hollywood's favorite blazers — and now celebrities are starting a love affair with cobalt in leather form. Julianne Hough wore a fabulous cobalt leather dress by Milly with B Brian Atwood peep-toes at the Rock of Ages premiere, Kristen Stewart sported a cobalt Balenciaga skirt at the 2012 CFDA Awards, and Miranda Cosgrove donned this cobalt leather cutout minidress by Porter Grey ($462, originally $660) at the 2012 Kids' Choice Awards. If you love leather and you love cobalt, why not combine them for an even stronger fashionable impact? Shop our favorite cobalt leather pieces below.