Dan Elkan has appeared on recordings by what American singer who has sold more than 50 million records worldwide?
Dan Elkan:  Elkan has performed live with Broken Bells, Hella and Kim Deal and has appeared on recordings by Hella, Team Sleep, Norah Jones and Zach Hill. Norah Jones:  She has won numerous awards and has sold more than 50 million records worldwide.
i don't know