Radio Tray is an online radio streaming player that runs on a Linux
system tray. Its goal is to have the minimum interface possible, making
it very straightforward to use. Radio Tray is not a full featured music
player, there are plenty of excellent music players already.

Features:

    plays most media formats (based on gstreamer libraries)
    drag & drop bookmarks support
    easy to use
    supports PLS playlist format (Shoutcast/Icecast)
    supports M3U playlist format
    supports ASX, WAX and WVX playlist format
    extensible by plugins

This requires: gst-plugins-ugly, gst-ffmpeg, gst-python.