This is a really great band to check out.  Calexico is out of Tuscon, Arizona.  They have lot's of energy, and the horn section really helps puts the power in their music.  They have this totally fun mariachi/Tejeno music thing going on, and it just makes you want to get up out of your seat (if you're sitting), and move your butt around.  So play this video and get up and dance!