[Taecyeon]
What time is it?
It's 2PM baby
We're back to the old school
Come on!

[Junsu]
Neoman bomyeon dugeun dugeun tteollyeo oneun
Nae maeul ajikdo moreuni
Han georeum gakkai naege dagawa jweo
Modeun geol neoege da julke

[Wooyoung]
Jogeumsshik daga ganeunde
Neon nunchi chaeji mothago
Na anin dareun namjareul
Chatgo inneun geoya dapdaphae

[Chansung]
Eotteohke mameul pyohyeonhaeya
I sarangeul al suga isseulkka
Deo isang chameul suga eopseo
Ijeneun da malhae julke

[Junsu]
Neoman bomyeon dugeun dugeun tteollyeo oneun
Nae maeul ajikdo moreuni
Han georeum gakkai naege dagawa jweo
Modeun geol neoege da julke

[Junho, Nichkhun]
Baby nae mameul ara jweo
Lady algettago malhaejweo
Maeil maeil haengbokhage hae julke
Geureoni jigeum eoseo
Naege daedaphae jweo

[Nichkhun]
Hangsang neol bogo inneunde
Geu geol aljido mothago
Na anin ttan namja ege
Utgo inneun geoya michigesseo

[Junho]
Eotteohke mameul pyohyeonhaeya
I sarangeul jeonhal su isseulkka
Deo isang kidaril sun eopseo
Ijeneun da malhae julke OOH
[ Lyrics from: http://www.***/lyrics/0-9/2pm/dont_you_know.html ]
[Junsu]
Neoman bomyeon dugeun dugeun tteollyeo oneun
Nae maeul ajikdo moreuni
Han georeum gakkai naege dagawa jweo
Modeun geol neoege da julke YEAH YEAH

[Junho, Wooyoung, Chansung]
Baby nae mameul ara jweo (OH jebal)
Lady algettago malhaejweo
Maeil maeil haengbokhage hae julke
Geureoni jigeum eoseo
Naege daedaphae jweo

[Taecyeon]
HEY Wae ape inneun nareul moreuni
Neoman barabomyeo kidarineun nae mam moreuji
Niga neomeojimyeon butjaba jul georie
Naega ittaneun geol why! Let me say
Dareun saram sagwindamyeon geugeon bona mana
Geunyang kkaejil geoya geureonikka hana mana
Naega itjanha geu nom sagwina mana
Trust in me, let me be the one baby
Let's go!

[Junsu & Junho]
Neoman bomyeon dugeun dugeun tteollyeo oneun
Nae maeul ajikdo moreuni
Han georeum gakkai naege dagawa jweo
Modeun geol neoege da julke

[Junho, Wooyoung, Junsu]
Baby nae mameul ara jweo (ara jweo baby)
Lady algettago malhaejweo
Maeil maeil haengbokhage hae julke (OH baby)
Geureoni jigeum eoseo
Naege daedaphae jweo (daedaphae jweo, daedaphae jweo OOH)