Filmmaker Karan Johar's radio show, Calling Karan, was a huge success as the callers loved Karan's bold and unfiltered answers to their relationship problems. And before the next season starts, Karan shared a heartfelt apology. He said that apologising is the best way to keep a relationship going. Though most people do not apologise because their ego comes in the way, it is the wisest option in any relationship, says Karan. He is learnt to be coming up with his famous show, Coffee with Karan, Season 6 soon.