I stumbled on this yesterday, and now i am extremely excited by the news! Apparently, Madonna, Kayne West, Celine Dion, Gwen Stefani, Linkin Park and more, are collaborating!!
This must be one of the most anticipated albums of this year, if not the decade! Wikipedia state that it is to be released in Jully 2008 (next month!!!)
Here is a video to tempt you into this great news!