Greek singer singing in English!!!!

I'm looking for a song heard in Greece: it's from a Greek male singer, but it's in english, I only remember that it says "....but my heart is empty........".
Please help me!!!!!!!!
Efkaristo!

the only greek singer i know:

Demis Roussos

he was very popular in the 70s

mmh..I don't think it's him...thanks anyway Michael !