XDeskCover is a free desktop widget program that shows the current song cover in a customizable skin. It fully works with Windows Media Player, Foobar2000, Winamp, iTunes.

XDeskCover also has a powerful Skin Editor with real time preview.

Features
Instant Player Controls
Skinnable with SkinEditor
Popup BalloonTip with Album Cover
Online search album cover tool
Cover as system tray icon
Free! No spyware or adware!