What can you tell me about this singer?

Google has several references under this name. He is almost certainly Greek.

I found this. Hope it helps.
http://www.billboard.com/artist/stelios-rokkos/bio/870346#/artist/stelios-rokkos/discography/albums/870346

Thanks guys, it’s really hard to find a bio on him :/

A friend of mine used to sing with him, so I went to one of the concerts. Not my style personally, but he seems quite talented. He wrote the music for the song which won the Eurovision song contest a few years back. He’s quite successful in what he does. I can find you a full list of CDs etc if you’re interested, or any other information (I’m fluent in Greek).