In my humble opinion, PowerTribe is the real deal. They put some thought, some effort, some artistry into this cover of "Carol of the Bells" and it shows. The guitar, the bass, the drums...they're all really attacking this thing with artistry. Anyway, I think so.
I do have a couple of minor issues. Given Trans Siberian Orchestra, I might have chosen a different song. Not that the versions are in any way comparable, but "Carol Of The Bells", these days, gets too readily identified with TSO in the Rock genre. More importantly, PowerTribe is a female fronted Metal band and their vocalist (and bassist) Missy Percifield is really really good. So why an instrumental? You got a hard rock band and your vocalist has the pipes and skill Missy does, show her off. "Show her off" sounds kind of sexist, but I'd say the same thing if PowerTribe had a male vocalist that good. Next year, guys, vocals on your Christmas song. Just sayin'. Incidentally, as I said, they're all good, so a little love, too, for guitarist Darren Stroud and drummer John Chominsky. They're both awesome on this thing.
Check out some of PowerTribe's music on Soundcloud and their album "Prepare For Battle". And they'd really appreciate it if you'd stop by their Facebook page and give them a "like". Oh, and "Carol of the Bells"? You can download it free from PowerTribe's official web site.