Jung Woo-sung, better known by his stage name Olltii, is a South Korean rapper. He was a contestant on Show Me the Money 3. He released his first album, Graduation, on February 24, 2015.
Biography：Jung Woo-sung, better known by his stage name Olltii, is a South Korean rapper. He was a contestant on Show Me the Money 3. He released his first album, Graduation, on February 24, 2015.
