What are the top songs in Ireland?

I am in love with Ireland and I am Irish but I live in America. I want to live in Ireland. I am trying to get more songs for my Ipod Touch 4th Generation 32 Gb that I got for Christmas. I am looking for rap songs that are big in Ireland or like Dj type songs. Anything but rock please. And if you can also give me a list of Hit songs. Or you can give me a name of a Ireland rap radio station. Thank you!