Some mash-ups are priceless, some are worthless, and some are just so-so.
A new one, "Elvis vs. Van Halen," from YouTuber Satoru Sayama, combining the music of Van Halen's "Jump" and Elvis Presley's vocals for "Burning Love" is so-so.
It starts out OK, but then the music becomes a bit overwhelming at times. You be the judge.