Avicii & Nicky Romero vs Linkin Park - I Could Be Numb (DJ Sky Jackson Bootleg)

the making of
A mashup (also mesh, mash up, mash-up, blend, bootleg[1] [2] and bastard pop/rock) 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.[3] To the extent that such works are "transformative" of original content.