This is a theme for the full-screen display of Kirocker Music Display, version 4 and later.

Kirocker Music Display is both a panel applet and a full-screen display to see what's you're listening to in Amarok, and control the playback.
You can download Kirocker Music Display here:
http://www.kde-apps.org/content/show.php/Kirocker+Music+Display?content=52869

To install the theme, untar the download and just open the file (the file ending with ".kirocker-theme.tar.gz").
Alternatively, you can launch the full-screen display of Kirocker Music Display, open the "Choose Theme" window, click "Import..." and browse to the archive to install.


permission:
The background image origin and license is from Vlad Gerasimov http://www.vladstudio.com
he gives permission to use this wallpaper.