O Brother, Where Art Thou?

I have seen this movie countless times and I love it. It is a George Clooney movie and he is shown singing, but he isn't.
For those of you who haven't seen this movie, it's set in the 1920's and it's loosely based on your legend of Ulysses (or Odysseus). It follows three friends through their escape from prison to find Clooney's character's wife and child. They stumble across a baptism of women. They also get mixed up with the KKK. They also start a band or group where they record their hit song, I am a Man of Constant Sorrow.
My description of the movie is scrambled and the things I have described are not in chronological order.