Best mashup ever?...
(from Wiki)
A mashup or blend (also mash up and mash-up) is a song or composition created by blending two or more pre-recorded songs, usually by overlaying the vocal track of one song seamlessly over the instrumental track of another. To the extent that such works are 'transformative' of original content, they may find protection from copyright claims under the "fair use" doctrine of copyright law READ MORE
Spotted @ FBook