"Chain Reaction"
[Taeyeon] Action
Chain Reaction, Action
Chain Reaction, Action
[Taeyeon] Yasashiku sareruto chotto
Yasashiku naru no
[Jessica] Fuan na me o sareruto (sareruto)
Fuan ni naru no
[Tiffany] Dandan You’re Loving Me
Dandan I’m Loving You
Rensa shite ku kanjou no rarii
[Sooyoung] Ichaga ichaga ga ni ni naru kankei
Nanka ja manzoku dekinai dakara
[Yoona] Toshindai yori choppiri
Okina ai tewatashi de kakezan chuu
Baby Ding-Dong hirogaru Chain Reaction
Uketotta ai de Ch-Changing My Mind
Kara sashidashu ai de Ch-Changing Your Mind
[Jessica] Ai ga ai o yobu Chain Reaction
[Seohyun] Sunao na omoi o kiku to
Sunao ni naru no
[Sunny] Kakehiki wa shinaide
Zuru kashikoku natchau
[Taeyeon] Dandan You’re Loving Me
Dandan I’m Loving You
Eien no kanjo no rari
[Yuri] Itsuka sekai mo kaete shimau wa
Anata no hato janainara
[Hyoyeon] Toshindai yori choppiri
Okina ai rii shite kakezan chuu
Baby Ding-Dong hirogaru Chain Reaction
Uketotta ai de Ch-Changing My Mind
Kara sashidashu ai de Ch-Changing Your Mind
[Tiffany] Ai ga ai o yobu Chain Reaction
[Jessica] Oh Oh Chain Reaction Oh Oh
[Sooyoung] Tebanasu yuuki no nai (Oh Baby)
[Yoona] Semai kokoro ni (Are You Ready?)
[Taeyeon] Shimaeru saizu no shiawase wa chiisai
[Yuri] Hito kara hito e
[Tiffany] Love to iu nano Virus ga
[Seohyun] Densen shite All Over The World
[Jessica] Sou wara hito kara hito kara hito kara hito e
Baby Ding-Dong hirogaru Chain Reaction
Uketotta ai de Ch-Changing My Mind
Kara sashidashu ai de Ch-Changing Your Mind
Ai ga ai o yobu Chain Reaction
[Taeyeon] Chain Reaction ([Tiffany] Oh~ The Chain Reaction)
Chain Reaction ([Tiffany] Oh~ The Chain Reaction)
Chain Reaction ([Tiffany] Oh~ The Chain Reaction)
Chain Reaction ([Tiffany] Oh~ The Chain Reaction)
Chain Reaction ([Tiffany] Oh~ The Chain Reaction)
Chain Reaction ([Tiffany] Oh~ The Chain Reaction)
