Beolsseo myeot beonjjae sae oseul garaipgo
Hwajangdo haebogo
Cheot insamareul sudo eopsi doenoedaga
Eosaekhan useumdeulman

Sujubeun nae maeum
Ajigeun jogeum seotuljineun mollado
Eorinaicheoreom deultteun
Nae maeumi deullinayo
Oh my boy

Day by day oh day by day
Aju jakjiman neul neowa hamkke kkeonael gieok
Han jul han jul jeogeo naeryeoganeun dulmanui
Aju bimilseureoun geu iyagideul

Rararallalla rararallalla
Nae maeume gadeuk neoreul talmeun norae
Rararallalla rararallalla
Nareul bureuneun neoui ipsure

Eorin sijeol sokkupjangnangati
Neowa naega maeil manna
Dulmanui sigan geurae eoseo wa
Mwo meogeulkka uri yeonghwa bolkka

Uri sonjapgo gaja na tteollineun geo anya
Geunyang mwol haedo joha neowa hamkkejanha
Maeil bam honja kkumkkuneun date oh
Gwaenhi na honja seollegessne naeildo

Tteollineun nae maeum
Ajigeun uri eosaekhan deut boyeodo
Eorinaicheoreom deultteun
Nae maeumi deullinayo
Oh my boy

Day by day oh day by day
Aju jakjiman neul neowa hamkke kkeonael gieok
Han jul han jul jeogeo naeryeoganeun dulmanui
Aju bimilseureoun geu iyagideul

Hangsang geotdeon I golmogi jeulgyeo deutdeon noraedeuri

Machi cheoeumin deut modeun geosi saeropge
Dasi taeeonan deut naccseon gibun eotteokhae

Neoegeman deullyeojullae
Amudo moreuge gamchwowassdeon nae anui
Aju bimilseureoun geu iyagideul

Day by day oh day by day
Aju jakjiman neul neowa hamkke kkeonael gieok
Han jul han jul jeogeo naeryeoganeun dulmanui
Aju bimilseureoun geu iyagideul

Day by day neowa hamkke

Day by day