Written by Italian songwriter Salvatore Cardillo in 1911 and dedicated it to Enrico Caruso, who made the first recording. Here are the links to listen.
1. Luciano Pavarotti sings Core 'Ngrato - subtitulado en Español
2. Francesco Valpa, with lyrics and English translation.
3. Placido Domingo in crying voice
4. Jose Carreras, live
5. Dmitri Hvorostovsky, live(Japan 2005)
6. Sergio Bruni sings with guitar
7. Roberto Alagna in tender guitar company