Back in June 2008, BNL was promoting "Snack Time" and stopped in to local radio station KFOG in San Francisco.

Here's a link to the MP3s:
http://notyou.googlepages.com/barenakedladiesonkfogmorningshow2008.06.

Get 'em while they're avaiable!

FYI: You might have to copy and paste the URL in to your browser to get it to work.