[Verse 1]
[Taeyeon] Let’s go! mwol geokjeonghaneunde neon,
Dwaetgo mwoga tto duryeounde?
[Seohyun] Jaego tto jaeda neujeobeoryeo
Oh oh oh~ Oh oh oh~

[Sunny] Maeil haruga dareuge buranhaejyeo ga
[Yoona] Apseo ga jugil barae geu nugungaga
[Jessica] Neon moreun cheok nuneul gamneun
You Bad Bad Bad boy, You so bad

[Chorus]
[All] Deo dangdanghage neon
Mr. Mr. ([Yuri] nal bwa)
Mr. Mr. ([Yuri] geurae baro neo neo neo)
Nal gaseum ttwige han
Mr. Mr. ([Tiffany] choegoui namja)
Mr. Mr. ([Tiffany] geuge baro neo)
[Taeyeon] Sangcheoro kkaejin yurijogakdo
Byeori doeneun neo Mr. Mr. Mr. Mr.
[Tiffany] Nareul bitnaejul
[Seohyun] seontaek badeun ja!
[Tiffany/Seohyun] Geuge baro neo Mr. Mr.

Mr. Mr. Mr. Mr. Mr. Mr. Mr. Mr.
Mr. Mr. Mr. Mr. Mr. Mr. Mr. Mr.

[Chorus]
[Jessica] Wae neon ajikdo mitji motae?
Jinjja! bimireul allyeojulge
[Tiffany] Neon wae teukbyeolhan Mr.inji
Oh oh oh~ Oh oh oh~

[Sunny] Mirael yeoneun yeolsoe baro niga gajingeol
[Sooyoung] Sonyeonboda deo keun kkumeul kkeureoana
[Yuri] Bitnan nun sok nal damgoseo
My Mi, Mi, Mister, Rock this world

[Chorus]
[All] Deo dangdanghage neon
Mr. Mr. ([Hyoyeon] nal bwa)
Mr. Mr. ([Hyoyeon] geurae baro neo neo neo)
Nal gaseum ttwige han
Mr. Mr. ([Sunny] choegoui namja)
Mr. Mr. ([Sunny] geuge baro neo)
[Tiffany] Sangcheoro kkaejin yurijogakdo
Byeori doeneun neo Mr. Mr. Mr. Mr.
[Jessica] Nareul bitnaejul
[Sunny] seontaek badeun ja!
[Jessica/Sunny] Geuge baro neo Mr. Mr. Mr. Mr.

[Pre-Bridge]
1, 2, 3, 4
Hey, Hey, Hey, Hey,
[Sooyoung] Mr. Mr. Mr. Mr.
Hey, Hey, Hey
[Sooyoung] Wooh~

[Bridge]
([Sooyoung/Yoona] Jigeum sesang ane) [Taeyeon] Oh, neape~
([Sooyoung/Yoona] Nuguboda meonjeo) [Taeyeon] neoldeonjyeo~
([Sooyoung/Yoona] Deo chiyeolhage) [Taeyeon] deochiyeolhage~
([Sooyoung/Yoona] Mr. Mr.) [Taeyeon] Mister~
([Yuri/Hyoyeon] Ojik geudaemani) [Tiffany] irwonael
([Yuri/Hyoyeon] Dan hana) [Tiffany] naeil apui neo
([Yuri/Hyoyeon] Geu ane sara gal neowa na) [Tiffany] Mister~ Oh~

[Bridge]
[All] Deo dangdanghage neon
Mr. Mr. ([Jessica] nal bwa)
Mr. Mr. ([Jessica] geurae baro neo neo neo)
Nal gaseum ttwige han ([Jessica] Oh you are~)
Mr. Mr. ([Hyoyeon] choegoui namja) ([Jessica] Mr.Mr.~)
Mr. Mr. ([Hyoyeon] geuge baro neo) ([Taeyeon] Ooh~)
[Seohyun] Sangcheoro kkaejin yurijogakdo
Byeori doeneun neo Mr. Mr. Mr. Mr.
[Taeyeon] Nareul bitnaejul choegoui namja!
Geuge baro neo Mr. Mr. Mr. Mr.