Led Zeppelin will be releasing a box set called The Complete BBC Sessions through Atlantic and its own Swan Song label on September 16. The box set is an expanded edition of the 1997 release and features a ton of live tracks from the band, including "Sunshine Woman." The song was only performed once, and was luckily record before it faded into obscurity.
You can check out the bluesy, fuzzy track below, and you can pre-order the box set in a variety of different CD/vinyl combinations through the band's website.