Bài hát: Happy Person (Piano Version) (Signal OST)
ulgo issnayo dangsineun ulgo issnayo
geureona dangsineun haengbokhan saram
ajikdo nameunbyeol chajeul su issneun
geureohge areumdaun du nuni isseuni
oeroungayo dangsineun oeroungayo
geureona dangsineun haengbokhan saram
ajikdo baramgyeol neukkil su issneun
geureohge areumdaun geu maeum isseuni
ajikdo nameunbyeol chajeul su issneun
geureohge areumdaun du nuni isseuni
geureohge areumdaun geu maeum isseuni