I have just stolen this from the Martha Wainwright Message Board. (Although stolen it a bit after the fact)

Here is a link to the message board and here is what it says:

Martha Wainwright Message Board

'Martha has 2 brand new songs on the most recent Radio Free Song Club, Nicholas Hill's podcast! "Can You Believe It?" and "All Your Clothes" were both recorded live in studio with the All-Stars, a group of musicians including Doug Wieselman, Dave Schramm, David Mansfield, JD Foster, Andy Burton, and Peter Moser. 

Take a listen (or download) here: http://radiofreesongclub.com/archives/2599'