I know I heard about this last week (Dec. 26 or Dec 27, 2007); it must have been on Radio IQ: a German rock singer, Peter Maffay, has produced an album titled, Encounters: An Alliance for Children. As I recall the radio broadcast, part of the proceeds will be used to support a school that teaches Lakota children their native language and culture.
I could not find an online rebroadcast of the radio program, which, as I recall, included information about an ongoing program in South Dakota in which many Germans have been involved for many years, that will be supported by Maffay's album project. But I did find some information about Maffay and his Encounters: An Alliance for Children album and project and tour.