Korean pop sensation band ‘BTS’ needs no introduction. The band and all of its seven members are popular across the world. Kim Namjoon, one of the seven members of BTS who goes by his stage name ‘RM’, is celebrating his 28th birthday today, on Monday, September 12. The K-pop star interestingly had turned 29, as per the Korean culture. On his birthday, here is an interesting story of a time when Kim revealed that before ‘RM’ his stage name used to be ‘Raunch Randa’.