Alexander Wang, Proenza Schouler, and Marni are just a few of the runways that showcased a plethora of leather looks for Spring 2013. Now, celebrities are taking the trend to their respective events, as evidenced by Diane Kruger in red leather, Solange in a bright iteration, and Olivia Palermo in a fresh leather take on the little black dress. Get all the details right here! On Allison McNamara: Tucker top, Darling skirt.