Here is a paragraph from the review of the cd in the Minneapolis Star-Tribune: http://www.startribune.com/919/story/319121.html
We knew what the song "1999" was all about. It's not clear what the significance of "3121" is. (I hear it's the address of his Los Angeles home.) The title song, which opens the disc, is a dense dance jam inviting you to a party: "U can come if U want to/But U can never leave." Sounds like shades of "Hotel California."
I wonder if the Purple One has figgured it out, and is planning a fade?