The amaroK development team has teamed up with the Creative Commons sponsored Wired CD, published last year by Wired Magazine, to create a really cool Live CD called amaroK Live. It is an interesting extension of the project started by Wired using the Creative Commons licensing technique, which includes many of the principles embodied in free software.
The KDE-centric PCLinuxOS LiveCD distro was used as a base to create this really cool Live CD. amaroK Live is not so much a Live CD distro as it is a demonstration of a really cool music player. It is a stripped down Live CD (only 289MB including the music) with a fully functional amaroK music player bundled with the tracks commissioned last year by Wired Magazine, which are distributed under the Creative Commons Sampling Licenses. It includes - among other major artists - tracks by the Beastie Boys and David Byrne.
The tracks can all be legally shared for non-commercial purposes (some also allow commercial use) and can even be used to make derivative works using sampling techniques.
You can find screenshots of the recently released amaroK 1.2 on OSDir.