Paul Mitchell has appointed beauty entrepreneur, mother and philanthropist Paris Hilton as its new global ambassador. The partnership kicks off with a glam, multi-channel campaign that merges two cultural forces into one collaboration, marketers say. ‘Head-Turning’ Looks with Sienree Du Spanning digital, social and in-store activations, the Paul Mitchell x Paris Hilton campaign is a celebration of beauty, confidence and reinvention. From glossy packaging upgrades to product innovations,...