Catari, Catari, pecche me dice sti parole amare,
pecche me parle e 'o core me turmiente, Catari?
Nun te scurda ca t'aggio date 'o core, Catari,
nun te scurda!

Catari, Catari, che vene a dicere stu parla ca me da spaseme?
Tu nun'nce pienze a stu dulore mio,
tu nun'nce pienze, tu nun te ne cure.

Core, core, 'ngrato,
t'aie pigliato 'a vita mia,
tutt'e passato e
nun'nce pienze chiu!

TRANSLATION:

UNGRATEFUL HEART

Caterina, Caterina, why do you say those bitter words?

Why do you speak and torment my heart, Caterina?
Don't forget, I gave you my heart, Caterina,
don't forget.

Caterina, Caterina, why do you come and say those words that hurt me so much?
You don't think of my pain,
you don't think, you don't care.

Ungrateful heart,
you have stolen my life.
Everything is finished
and you don't care any more!

Source: http://www.metrolyrics.com/core-ngrato-lyrics-russell-watson.html