Lyrics:

[Woori]
Hey boy you're my dream
Uh, don't you wake me up

[ALL]
(Baby I can't let you go)
Dalkomhan kkum sogeseo nal kkaeuji marajwo
(Baby I can't let you go)
Sarangui pum sogeuro nal gyesok deryeogajwo
(Baby I can't let you go)

[Seungah]
Nal baraboneun geudae
Geu mugeoun siseoni neukkyeojineunde, I know
Amudo mal eobsido aljyo nunbitman bwado

[Jisook]
Nal tteonaryeoneun geudae
Geu chagaun malmaneun haji marajwo, oh baby
Urin jalhaewatjanha eodumi wado

[NoEul]
Neon neul geu jarie nal bichudeon star
Ttaseuhage nal gamssajudeon sunshine
Neon geuraewatjanha neul hamkkehaetjanha
Ireolsun eobseo tteonagajima

[ALL]
(Baby I can't let you go)
Dalkomhan kkum sogeseo nal kkaeuji marajwo
(Baby I can't let you go)
Sarangui pum sogeuro nal gyesok deryeogajwo
(Baby I can't let you go)

[Jaekyung]
Nan du gwireul magado
O geudaeui moksoriga deullineunde oh baby
Naege malhaesseotjanha saranghandago

[Yoonhye]
Neon neul geu jarie nal bichudeon star
Ttaseuhage nal gamssajudeon sunshine
[Hyunyoung]
Neon geuraewatjanha neul hamkkehaetjanha
Ireolsun eobseo tteonagajima

[ALL]
(Baby I can't let you go)
Dalkomhan kkum sogeseo nal kkaeuji marajwo
(Baby I can't let you go)
Sarangui pum sogeuro nal gyesok deryeogajwo
(Baby I can't let you go)

[Woori]
Nae soneul nochi marajwo
Urin sarangui biga wado
I biga da jinagago namyeon bolsuisseulgeoya rainbow
Ppaljunochopanambo mujigae geuge baro uri ap pyeolchyeojin mirae
Nuga mworaedo nan kkumeul mitji
Geugeon neoraneun nae one and only sweet dream

[Jaekyung]
(ALL: Lala, lala) Geudaeeobsi meoreojineun naui sweet dream
(ALL: Lala, lala) Geudaeeobsi sarajineun naui sweet dream

[ALL]
(Baby I can't let you go)
Dalkomhan kkum sogeseo nal kkaeuji marajwo
(Baby I can't let you go)
Sarangui pum sogeuro nal gyesok deryeogajwo
(Baby I can't let you go)