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: Norah Jones (born Geetali Norah Shankar; March 30, 1979) is an American singer, songwriter and actress. Norah Jones:  She has won numerous awards and has sold more than 50 million records worldwide.
Norah Jones