Ha Hyunsang - Alright (OST Crash Course in Romance Part.5)
Ha Hyunsang - 겨울이 오면 (When Winter Comes)
Ha Hyunsang - Everybody's Changing
Ha Hyunsang - Dear You (OST Mental Coach Jegal Part.2)
Ha Hyunsang - By Your Side (OST ADAMAS Part.4)