O Broject - 애매해 (Ambiguous)
O Broject - 졸업 (Graduation)
O Broject - 연애의 온도 (Temperature of Love)
O Broject - 전화하지마 (Don’t Call Me)
O Broject - A Glass of Light Drink (feat. Hanhae of Phantom)
O Broject - It's A Lie (Feat. Lee Hyun Woo, Park Jang Hyun)