Yahoo has recently starting selling a non-DRM personalized mp3 by the artist Jessica Simpson. The track "A Public Affair" can be purchased on Yahoo! Music and offers over 300 different personalized versions. So if you feel the need to be serenaded by Jessica you should buy this track.
Aside from the joy you might feel from purchasing a personalized mp3 by sex symbol, Jessica Simpson, you might consider purchasing the track to show your support for the move by Yahoo! Music to sell non-DRM music. I just purchased a copy to support the movement - of course I had to go with the personalized Frank version of the song. Thanks Jessica for the shout out!