Chen (EXO-M) - Best Luck (It's Okay, That's Love OST)
Chen Exo (Ost. It's Okay,That's Love) - Best Luck
Chen-EXO - 최고의 행운 (best luck) (ost it's okay, that's love)
Chen (EXO) - 최고의 행운 [It’s Okay, That’s Love OST Part.1]
Chen (EXO) - The Best Luck (It’s Okay, That’s Love OST) (Inst.)
Chen (EXO) - Best Luck (It's Okay, That's Love OST)