It's ok to be sad
 曲 : 卫兰/Ariel Lai/Cousin Fung
 词 : 黄伟文
 编 : billylong
 Solo : Gordon Lee (Harmonicist)
 OP : Royal Flux Limited/Edward Music Publishing/Wyman Limited
 SP : Warner Chappell Music, Hong Kong Limited
纯音乐，请欣赏