Lord Millennium's Heart

Lord Millennium's heart  is a nursery rhyme sung by Road Kamelot (Shimizu Ai) and later the Earl during General Yeegar Falls arc in the anime.

Romaji
Sennen ko wa sagashiteru

Daiji no hatto sagashiteru

Anata wa atari tashika me yo

Daiji no hatto sagashiteru

Sennen ko wa sagashiteru

Daiji no hatto sagashiteru

Watashi wa hazu re. Sugi wa dare?

Anata wa atari tashika me yo

English
The lord Millenium is in search of you

Looking for the heart now. Have you heard the news ?

Maybe you stole it from him, i'll see if it is true

The lord Millenium is in search of you

Looking for he heart now. Have you heard the news ?

I was not the one he sought, maybe it is you

Who is it that has my heart? I will find you soon