I am not pissed, I'm a musician, they aren't
I can do that with my guitar and my voice anytime to really good songs and they sound different because I play them on my personal style. There's a big difference between "sound different" and "sound pitched".
as ezample: The last time I changed my guitar strings from electric to heavy gauge I found out that I was not able to tune it alright, not able to reach #E tunning or strings would break, so I had to tune my guitar on #C and tested some songs. Some songs originally played in #A or #Aminor sounded great playing this way, but it was the only one acepted by harmonics, because I was actually playing them in #F or #Fminor, with a stronger vocal punch.
Then later I pulled the guitar "soul" and I'm closer to the standard #E tunning now.
what I mean, is that NOT ALL is valid in music, these guys pitched a song with no sense at all, and it sounds awful
They have no merits in my eyes and just made a stupid video and want some stupid fame.
But they will never be good 