They combine Transylvanian, Gypsy, Hungarian, Romanian folk music with American blues, rock and roll, and some unique sounds all their own. They have a great fiddle player, an interesting singer/guitar player and a guy who sometimes plays a leaf. It looks like they have a lot of fun and so does the audience. I love the way they include old and young people in these videos.
They have quite a few videos on YouTube and a page on MySpace
Two of my favorites from YouTube are the "Shame" and "Blue Suede Shoes" videos below. I also embedded a documentary from their MySpace page that explains their history and musical style - it's fascinating. Finally there is a Mixpod MP3 player with some of their songs - I particularly like the rendition of "Good Night Irene".