For 40 years now, the Ann Arbor Folk Festival has drawn audiences who appreciate ethnic music, folk, roots, and good times in general. The lineup includes the likes of Kacey Musgraves, Rainbow Kitten Surprise, We Banjo, and even the Indigo Girls. Also, Kiefer Sutherland will be there. Yes. That Kiefer Sutherland. The actor released his first folk album in March, and it was pretty darn good. So, if the Indigo Girls weren’t enough to draw you in, remember Kiefer Sutherland.