Riko (리코) is a retired South Korean singer. She is a former member of the girl group RaNia. In 2011, she debuted as a member of RaNia in the group's original line-up, with the group's first mini album Teddy Riley, The First Expansion In Asia. After the release of Just Go in March 2013 she was absent from the group's activities, in May 2014 DR announced that Riko had left... see more