Muse contribute KOC live to charity CD

Muse, Bloc Party and Feist are among the artists who have contributed songs to a forthcoming charity compilation.

'The Green Owl Comp: A Benefit for the Energy Action Coalition', due out April 8 in the US, is a two-disc CD/DVD set featuring tracks from artists supporting the work of the Energy Action Coalition, made up of more than 40 US and Canadian organizations leading the youth-driven clean energy movement in North America.
All profits from sales of the album will go toward the Energy Action Coalition.
On the tracklisting, Disk One lists 'Knights of Cydonia" (live).

Additional Info:

The date/venue of the recording are unknown at this time, but the track is "exclusive" to the compilation. That's all the info that NME gave.

The official website for the compilation states that the CD will be released in February.
NME says April, and knowing NME, they're probably wrong.