Why does Greek sound Spanish?

Why does modern Greek sound like Spanish?

http://www.youtube.com/watch?v=1FGKqsa4rcM

Because you don't understand either Greek or Spanish.

well you know in a riiot it is difficult to listen what the people use to say...

tu pues du cul

It's all Greek to me.

It's all Spanish to me.

I think it all depends on some very common sounds such as jota, c/z and s which are pronounced the same in both languages.

I know Spanish and I agree that Greek has phonological similarities to Spanish even though it is lexically very different from it.

Greek is everywhere in IE languages, and it's in Spanish too. Consider "ghata"-it's Greek for Cat and "gata" for a female cat in Spanish. Greek has "th" and European Spanish has "th"-so I'm not surprised that it sounds similar. I speak Spanish and I'm learning Greek.
Once you know more about Greek, it won't sound quite as similar to Spanish, but it used to sound like Spanish to me too.

I think the question should be: why does Spanish sound so much like Greek?

knock-offs

Interesting. I don't think that Greek sounds anything like Spanish. To me it sounds almost Slavic for some reason. When I heard someone speaking Greek for the first time I thought they were Ukrainian.

Before I began learning some I thought it sounded like Italian...

The Italian language has got 7 vowels a, i, u, è, é, ó, ò unlike Greek, Spanish or Japanese which only possess five vowels a e i o u.
Italian has plenty of geminate consonants unlike Greek and Spanish, except double RR in Spanish
Some typical sounds are only familiar to Spanish and Greek, such as Þ, S, X sounds. Even the intonation sounds more similar to me. Of course Spanish and Italian vocabulary is quite similar unlike the Greek one which is completely divergent.

Japanese has 5 vowels but they are not the same than the Spanish ones.

Obviously the Greek comparison only applies to European Spanish because Latin American Spanish sounds more like Italian. If you're an American or Canadian you're more exposed to the latter which sounds softer and less guttural and therefore more like Italian.

Mexican Spanish does not sound like Italian more than European Spanish. Among the American Spanish dialects only Argentinian Spanish has the Italian intonation. As for gutturality I don't know what you are referring to . Even Argentinian Spanish has the guttural /x/ sound, whereas Mexican Spanish or Cuban Spanish don't because they pronounce "aspired" jotas.