Beastie Boys Unreleased Songs With MCA

Beastie Boys announced in an interview about the passing of Adam Yauch (MCA) with Rolling Stone that the band had recorded with unreleased demos with him last fall. 

How much music did you make at your final recording session with him last fall?”
Adam instigated it. It could only come from him, in terms of where he was at with treatment. It was stuff we had written or demo-ed, and there were new ideas. He wasn’t sure he was able to do vocals. But after a bit, we ended up doing them. And he was fine. It was a way for him to say, ‘Yeah, I’m doing it.’

Read the full interview with Rolling Stone here