I found this last year and it still amazes me. The whole song is composed from samples taken from about 30 different songs. The complexity of this boggles my mind. It reminds me of those pictures made up of other tiny little pictures. It’s a pretty cool concept. What I like about this song by Madeon is that it sounds like it’s own piece of music. It’s very skillfully done. The YouTube page has the list of songs in the description.