Well, all of you must have heard of the chocolate boy, which Karthi definitely is... But now, he has become the biscuit boy! Wondering how? Well, he has been chosen as the brand ambassador for the famous biscuit brand - Oreo, by Cadbury! Karthi from the south and Ranbir Kapoor from the north have been chosen to endorse the brand through a new ad campaign titled 'Connect Playfully'. A top official from the brand states that these stars were chosen based on their universal appeal and individual personalities. He added that having them on board would take Oreo's appeal to the next level!