Well i found a report and apparently j-lo wasn't very good in greece
"Gates were supposed to open at 5:30 pm, they opened at 8:00 pm People were waiting outside in the rain the whole time J.Lo started rehearsing at 7:00 while people were still outside the hall J.Lo got on stage at 9:50 pm (the opening artists were mediocre Greek preformers who sang in total less than 30 mins, meaning another 1 and a half hour of waiting in the hall) J.Lo sang for only 55 mins!! Ticket prices were: 60 Euro the cheapest (about $90 for the lamest area in the hall) and the most expensive was 250 Euro (about $365) A lot of Greek media dissed the event
J.Lo had canceled last minute her mini tour 2 years ago, which included Athens."
Yes, she canceled her live 2years ago, and we were very angry with her that's why not so many ppl came to her concert,they are all talking about Madonna's concert xD