Aviv Geffen is an Israeli rock musician, singer, songwriter, producer, keyboardist and guitarist. He is the son of writer and poet Yehonatan Geffen and Nurit Makover, brother of Shira Geffen, and a graduate of Rimon School of Jazz and Contemporary Music.
Geffen was and is extremely popular among Israeli youth, who were later known as the "Moonlight Children", in the 1990s. Politically, he associates with the Israeli left. His music contains subjects such as love and peace, but also death, suicide, the army, and refusal to serve. He is also controversial because of his decision not to serve in the IDF, though officially, he was dismissed for medical reasons.