There are at least 6 Groups and one independent artist with this name: 01. NRG is a South African pop group formed in 2011 consisting of Christiaan Botha, Rowan Zerf, Abel Knobel, and Stephantasties. 02. NRG is Korean hip hop and dance boyband. NRG is the acronym for New Radiancy Group. Originally a five-member group, then became a 3 member group when the leader Lee Sungjin left for his pursue of acting and as an announcer and Chun Myong hoon left for music producing.