Wikipedia
Turbojugend
Turbojugend, sometimes shortened to TJ, is the international fan club of the Norwegian rock band Turbonegro. A Turbojugend member can be recognised by their specially-made denim jackets with the Turbonegro logo and "Turbojugend [name of chapter]" stitched on the back. The logo of Turbojugend Oslo can be found on almost every album Turbonegro has made. There are more than 2300 chapters worldwide.