You're all going down a blind path...Juan Tanamera is in fact a Greek song, written about a toyboy called Yiannis Chryssos ("Gold", named so after all the heavy gold chains he had round his neck).

He was famous for his one-night stands (whole-night stands, more like), and for being up bright and early even after the exersions of a hard night at his trade. So the people on the street would greet him in the morning, saying "Yianni, KALImera" ("good morning John, you made it through another night then").

Eventually the song "Yianni kalimera" was written, made the charts and exported to Cuba, where some local wordsmith tried to translate it into Spanish ("yo soy un hombre sincero" - "I am a straightup guy"), but mishearing the second word transcribed it to TANAmera...

There you have it.

I'll get my coat...