From what I'm told, mash-ups of songs from varying bands and varying styles are pretty popular. These combos pop up online and in clubs, and, from what I have heard, are curious oddities. I remember there was a mix combining Jay Z's Black Album with the Beatle's White Album that was making the rounds for awhile. Now here is a whole different take on the mash-up, a band that takes the songs of the Beatles and Metallica and reworks them into something completely different. They...