come on, IWB, don't take us all for morons, we've heard of the stuff you like.
my favorite Irish-y band is The Tossers, and they're Irish Americans from Chicago. I think "Everything's Bad" is up there with the most beautiful songs ever written, and "Dancin' Shoes" is my favorite song to move to.
Also, The Pogues of course, they started it all. I occasionally like Black47, but those times are few and far between. Obviously, the DKM. I don't really care for Flogging Molly all that much, but the story that Tony Duggins told me about how the Flogging Molly boys locked Tony & Aaron in the back of a UHaul is fucking hilarious. There's a band called Blood or Whiskey which is pretty good, and ditto the Filthy Thieving Bastards. If people are looking to get into Irish-y music, there's a comp called "Shite 'N' Onions" which has some good stuff on it. Also check out the Real Mackenzies, they're Scottish but it's all Celtic....
Stiff Little Fingers still kick ass in their old age. The Undertones were awesome back in the day. I also dig Irish traditional music, like the Chieftains, the Dubliners, Kevin Burke (fiddle), Dolores Keane, Lunasa, etc etc.
So yeah....and Irish music festival. big thumbs up.