Just FYI: I thought for sure the vocals had to have been modified, and Dave Lynch in the comments of the video confirmed it’s even more impressive than just throwing the two together:
Dave Lynch (Link to comment)
I gotta say, I don’t think the casual listener can begin to appreciate what Mr. McClintock has accomplished here… It’s one thing to alter the pitch and tempo of two songs, isolate certain tracks, and mash those together. Bill is far and away the best in the business when it comes to that.But THIS particular mashup… if you’re a die hard Van Halen fan, you hear it right away… that’s NOT how DLR sang the song! Bill altered the tempo, cadence and inflection of INDIVIDUAL WORDS from the original vocal track, and did it so skillfully that it comes out sounding completely natural and unedited.
It’s the audio equivalent of a Deep Fake… he turned DLR into a country singer. This is Next Level stuff, even for McClintock. BRAVO, sir.
P.S. am I crazy, or did I hear like 5 notes from the bridge of And The Cradle Will Rock thrown in there? Genius.
To which the creator replied “Yes you did!” 
