Ajoo (Born Noh Ah-joo, (노아주 on July 6, 1990) is a South Korean singer who debuted in 2008 with the single "1st Kiss". Although his first single did not do as well as expected on music charts he made a comeback with "Paparazzi" which features labelmate and popular female solo artist Younha. Younha also wrote the lyrics for the song and appeared in the music video. In 2010 he starred in a Thai film Kaorak thi kaoli Sorry saranghaeyo by Poj Arnon, as himself.