Rihanna bought her A-game to Pharrell Williams' debut LV collection at Paris Fashion Week. She cheered for Pharrell, spearheading the French luxury house's new campaign. Jacob & Co has teamed up with the singer to create a new trend - a watch choker. It is for the first time that a timepiece has been worn on a neck. br br #Rihanna #LouisVitton #Diamondbr ~HT.99~PR.