Kyuhyun: Hey! Hey! Hey! 
Jessica: Oppa Oppa 
YoonA: Gappeuge chaoreun sume jjotgyo daranagi bappatjyo [ Jessica ] Oooo
Kyuhyun: Tojil deut bocheneun simjangeul dalleneun bop nan mollatjyo
Jessica: it's a Crystal Heart... [ YoonA ] My Crystal HEart 
 
All: 
Sesang gajang keun nalgereul dalgo son geuden nomu areumdawo
Areumdaun geude-ege pyolchyojin jo haneureul Touch the sky 
Mido on mankeum kkum kkwo-on mankeum bunmyong neireun Rise and shine

It's a Crystal Heart [ YoonA ] Uuuu... 

Kyuhyun: The cradle will fall
But mama will catch u 
Cradle and all

YoonA: it's a Crystal Heart for you...