"Nanatsu no Ko" is a popular 1921 children's song

Aya sang harmony to Keiko Masuda on the 2004
"Kazoku de Eruba Nippon no Uta"

Mus: Nagayo Motoori (本居長世), Lyr: Ujou Noguchi (野口雨情)

TV version:

Kanji

烏 なぜ啼くの
烏は山に
可愛い七つの
子があるからよ

可愛 可愛と
烏は啼くの
可愛　可愛と
啼くんだよ

山の古巣へ
言って見て御覧
丸い眼をした
いい子だよ

Romaji

Karasu naze nakuno
Karasu wa yama ni
Kawai nanatsu no
Ko ga aru kara yo

Kawai kawai to
Karasu wa nakuno
Kawai kawai to
Nakundayo

Yama no hurusu e
Itte mite goran
Marui me o shita
Iiko da yo

Translation

Mother crow, why do you squawk so?
Because high on the mountain
I have seven
cute children.

"Cute, cute,"
This mother crow sings.
"Cute, cute,"
Cries the mother crow.

You should behold the old nest on the mountain.
And there you'll see such
Round-eyed,
good children.