Lời bài hát Happy Birthday

Ca sĩ: NU'EST Album: Action
oneu chuun gyeoul nal
Hananimkkeseoneu n han sarameul
Wihan cheonsareul i ttange bonaesyeotjyo
Oraen sigani jina
Sarangeul juge doen geu cheonsaneun
Sangcheo ibeo nunmul heullyeodo naegen useojwotjyo

Uri saranghago jamsi tteoreojin hu
Majeun cheonsaui cheot beonjjae saengil
Yeope isseojujido motajiman
Saengil chukhahaeyo chukhahaeyo
Dangsini taeeonan nal geubunkke gamsadeuryeoyo
Dasi hanbeon saengil chukhahaeyo (x3)

Chukhahaeyo
Ma nhi saranghaeyo