[Jessica] Hey boys, no more worries, put on a smile for me
Hey girls, no pain no gain is what they say, right
[Tiffany] Ok, no need to stress, ok, brush it off your chest
Through the rain there's a brighter day, don't worry be happy
[Taeyeon] Eojireo wo jukgesseo mwoga geuri mari manha
[Seohyun] Mom seori seori chyeo jineun inal jombwa
[Jessica] Nuga meonjeo geuman jom hae jogeum man chama gwaen chanha
[Sunny] I'm sorry, sorry nuga meonjeo malhaebwa
[Yuri] Ooh, boys, ooh, girls, [Yuri/Yoona] be happy, hey, be happy, hey
[Tiffany] Ooh, boys, ooh, girls, [Sunny/Hyoyeon] be happy, hey, be happy, ha
[Jessica] Ireo kung jeoreo kung mwoga geuri mari manha
[Taeyeon/seohyun] Oh, utja utja geunyang useo beorija
[Taeyeon] Iraera jeoraera apeun mareun haji mara
[Tayeon/seohyun] Oh, utja utja geunyang useo beorija
Ha, ha, ha, ha, ho, ho, ho, ho, [Yoona] geunyang utja
Ha, ha, ha, ha, ho, ho, ho, ho, [Sooyoung] geunyang utja
Ha, ha, ha, ha, ho, ho, ho, ho, [Seohyun] geunyang utja
Ha, ha, ha, ha, ho, ho, ho, ho, [Yuri] geunyang utja
[Yuri] Hey boys, gogae sugiji malgo geunyang keuge useobwa
Hey girls, jjajeung nago dap daphaedo it's gonna be alright
[Tiffany] Smile for me, alright, smile for me, alright
Through the rain there's a brighter day, don't worry be happy
[Jessica] Saram deuri moduga apeudago ureodo
[Sunny] Oh, dori dori jal dwelgeoya gwaen chanha
[Tiffany] Apeudago datumyeon jeongmari geon ani janha
[Seohyun] Nae soni soni anirago hajanha I love you
[Sooyoung] Ooh, boys, ooh, girls, [All] be happy, hey, be happy, hey
[Hyoyeon] Ooh, boys, ooh, girls, [All] be happy, hey, be happy, ha
[Seohyun] Ireo kung jeoreo kung mwoga geuri mari manha
[Seohyun/taeyeon] Oh, utja utja geunyang useo beorija
[Taeyeon] Iraera jeoraera apeun mareun haji mara
[Seohyun/taeyeon] Oh, utja utja geunyang useo beorija
Ha, ha, ha, ha, ho, ho, ho, ho, [Yoona] geunyang utja
Ha, ha, ha, ha, ho, ho, ho, ho, [Yuri] geunyang utja
Ha, ha, ha, ha, ho, ho, ho, ho, [Jessica] geunyang utja
Ha, ha, ha, ha, ho, ho, ho, ho, [Seohyun] geunyang utja
[Tiffany/all] Don't worry, worry, don't, don't worry baby
[All] Be happy, hey, be happy, hey
[Sooyoung] Don't worry, worry, don't, don't worry baby
[All] Be happy, hey, be happy, ha
[Jessica] Ireo kung jeoreo kung mwoga geuri mari manha
[Taeyeon/seohyun] Oh, utja utja geunyang useo beorija
[Taeyeon] Iraera jeoraera apeun mareun haji mara
[Tayeon/seohyun] Oh, utja utja geunyang useo beorija
[Taeyeon] Can you feel me?
[Sunny/seohyun] Ireo kung jeoreo kung mwoga geuri mari manha (hey, listen everybody, c'mon! )
[All] Oh, utja utja geunyang useo beorija
[Taeyeon] Iraera jeoraera apeun mareun haji mara
[All/Sunny] Oh, utja utja geunyang useo beorija