There is more than one artist with this name:
(1) The first project by Seunghyeon Choi With elements of shoegaze, post-rock and electronica, Choi wanted to create an album with other, young new artists and together they all collaborated to create (We've Been On) Yellow Wave.
(2) Madeleine are an experimental rock band from the Basque Country.
(3) Madeleine is an indie pop/indie rock band from Bonn/Germany.