Since Bush and Cheney have agreed to testify in front of the 9/11 commission, Peter David (writer of stuff) has written a funny parody of what they might say based on "We Both Reached for the Gun" from Chicago.
Have you ever seen the stage production of Chicago? In the stage production, Mary Sunshine is played by a man who sings falsetto. While I agree, seeing Governor Kean singing like Mary Sunshine is a stretch, considering the stage show, it is not unreasonable. :)