Raja Rajamannar, Mastercard's chief marketing and communications officer, shares his insights on marketing, social media, brand storytelling and how Mastercard has evolved its iconic Priceless campaign to Start Something Priceless both inside and outside the company. We also find out why the sound of a brand is important to what tech impressed him at this year's Consumer Electronics Show in Las Vegas. We also get to find out Raja's favorite story of all time and what his own Start Something Priceless pledge will be. It's a must-listen conversation...