Ranbir Kapoor seemed to be in a mood of candid confessions when he made an appearance on Karan Johar’s popular chat show ‘Koffee With Karan’. Speaking about relationships, Ranbir said, “Being single is boring. If you want space then you should join NASA. There is no such thing as space.” The episode has an interesting segment where host Karan Johar asked the duo, Ranbir and Ranveer Singh to do Katrina Kaif’s step from ‘Chikni Chameli’. A confident Ranveer started doing the step while Ranbir made extra efforts to show the former the correct moves.