I just found these hibrid mixes of music really cool.
I think that is the way all forms of art needed to be since the beginning: someone create a piece of art, and another one manipulate and add it his own artistic resources, creating more art, and not relying on issues of copyrighting or whatever that limits the creativity of the society.
The examples in this post shows music mix form of art, but it can be everything.... all of this happening thanks to internet.
Enjoy.