LYRICS (credit for romanized/color-coded lyrics goes to SNSD Lyrics):

Victoria | Amber | Luna | Sulli | Krystal

Hey, yo, na eotteokhae yo eonni, nae mareul deureo bwa
nae geusarameul eonni, modeu gesseo yo
cham eongttung hada mannal, naman nolliji
naega jeongmal yeppeo, geureoh damyeon dwae

dok chanjeok byeolmyeong jitgi, yereul deulmyeon gungdi sundi
mame deureo sun beonjjeok deulgi jeongmal nan NU ABO

Mysteric, mysteric, molla molla ajik naneun molla
gibon gibon sarang dongshik, saram deulye ibyeol gongshik
Hysteric, hysteric, dalla dalla naneun neomu dalla
nae mamdaero nae tteut daero, joha joha NU ABO

Nananana nana nananana nanananana nananana
Nananana nana nananana nanananana NU ABO

nae mal deureo bwayo eonni, I’m in the trance
jigeum i gamjeongeun mwojyo nan cheoum inde
gaseum dugeun dugeun machi, kkum kku neun deut
nan gureum wireul dungdung, sarang inga bwa

ttak sebeon ssawo bogi, he eo jilttae insa anhgi
bogo shipeun na saenggak deulttaen, keopeulling manjyeo bogi

Mysteric, mysteric, molla molla ajik naneun molla
gibon gibon sarang dongshik, saram deulye ibyeol gongshik
Hysteric, hysteric, dalla dalla naneun neomu dalla
nae mamdaero nae tteut daero, joha joha NU ABO

Nananana nana nananana nanananana nananana
Nananana nana nananana nanananana NU ABO

sarange bbajingeon neomu meotjin irinde
namanye gamjeongeun mot ijeul geudaero gatneun geol, yeah
sae robge jom twige machi kkumeul kiwo ganeun geot
Mystery ABO geugeon modu da neo ingeol baro neoran geol oh

What you, what you call, what you, what you, what you call
Yes, this is how we do it, our love effects, yeah, yeah
Yeah, this is how we do it, pure love effects, yeah, yeah
Yeah, this is how we do it, bring it love effects, uh

ireon moseub eottae ige na ingeol eotteokhae
naye gyeoten niga isseo teukbyeol hangeon de, yeah (Oh~)

Mysteric, mysteric, molla molla ajik naneun molla
gibon gibon sarang dongshik, saram deulye ibyeol gongshik
Hysteric, hysteric, dalla dalla naneun neomu dalla
nae mamdaero nae tteut daero, joha joha NU ABO

Nananana nana nananana nanananana nananana
Nananana nana nananana nanananana nananana
Nananana nana nananana nanananana NU ABO
Nananana nana nananana nanananana NU ABO