Red Velvet - Bad Boy Lyrics Romanization.

[Irene]
Who dat who dat who dat boy
Sumanheun saram sok nune tteuin
[Seulgi]
Musimhan geu pyojeong I like that
Nae hogisimeul jageukhaji

[Yeri]
Oh sikeuhan seutaileun deom
Ibeun oseun sin-gyeong sseun deut an sseun seut

[Joy]
Gwansim eobtneun maltu I like that
Oemyeonhae bwado kkeullyeo


[Wendy]
Dalla dodohan nal utge hajanha
Aljanha yojeum naega Hot ah ah
Nal boneun siseon neodo neukkyeobwa


[All]
Hollin deut nal ttarawa
Modu hwanhohae neodo god Ooh ooh (Oh-eh-oh-eh-oh)
Anin cheokhaedo neon Ooh ooh (Oh-eh-oh-eh-oh)
Han beon naegireul haebolkka


[All]
Neomu swibgen oji ma
Jaemi-eobtjanha geogiseo Ooh ooh (Oh-eh-oh-eh-oh)
Milgo danggyeobolkka Ooh ooh (Oh-eh-oh-eh-oh)
Sijakhalge Bad boy down


[All]
Whoa whoa

[Wendy]
Jigeumbuteo Bad boy down 

[All]
Whoa whoa

[Yeri]
Jamkkan iri wabwa neo-egeman hal mari isseo
Gakkai jom wa gogael sugyeo kireul najchwobwa

[Wendy]
Dareun geon sin-gyeong sseuji ma
Nae moksori-e jibjunghae


[Irene]
Sanghwangeun jom dallajyeo
Juwireul maemdoneun naega gunggumhae 

[Joy]
Neodo alge doel geoya ([Seulgi] Mwolkka?) Al geoya ([Seulgi] Malhae)
Imi neujeobeoryeottdan geol


[Seulgi]
Maja sasil kkwaena jasin isseo nan
Jineun geim hajin anha Ha ah ah
Beolsseo banjjeumeun neomeo-wattjanha


[All]
Hollin deut nal ttarawa
Modu hwanhohae neodo god Ooh ooh (Oh-eh-oh-eh-oh)
Anin cheokhaedo neon Ooh ooh (Oh-eh-oh-eh-oh)
Han beon naegireul haebolkka

[All]
Neomu swibgen oji ma
Jaemi-eobtjanha geogiseo Ooh ooh (Oh-eh-oh-eh-oh)
Milgo danggyeobolkka Ooh ooh (Oh-eh-oh-eh-oh)
Sijakhalge Bad boy down


[Wendy]
Hollanseureon mamigettji sangsangjocha mothal geoya

[Joy]
He-eonaryeo noryeokhaedo eotteon jageun teumdo eobseo

[Seulgi]
Jeongdabeun jeonghaejyeo isseo jayeonseureobge neon ttarawa

[Irene]
Nan neol seontaekhae nan neol
seontaekhaesseo imi


[All]
Hollin deut nal ttarawa
Modu hwanhohae malhaettji Ooh ooh (Oh-eh-oh-eh-oh)
Gyeolgwan hangsang gata Ooh ooh (Oh-eh-oh-eh-oh)
Geobwa naega tto igyeosseo


[All]
Neomu swibgen oji ma
Jaemi-eobtjanha ije neon Ooh ooh (Oh-eh-oh-eh-oh)
Beoseonal su eobseo Ooh ooh (Oh-eh-oh-eh-oh)
Naegen swibji Bad boy down