SF9 (에스에프나인) is a nine-member boy group under FNC Entertainment. They were part of FNC's trainee system "NEOZ School" and took part in the survival show d.o.b (Dance or Band) as the NEOZ Dance Team in which they won the show. They officially debuted with their first single album "Feeling Sensation" on October 5, 2016. Their name stands for 'Sensational Feeling 9'.