***BACKMASKING/SUBLIMINAL MESSAGES IN MUSIC???

I WAS MESSING AROUND ON YOUTUBE TODAY AND CAME ACROSS THIS VIDEO. I'VE HEARD THINGS BEFORE ABOUT CERTAIN SONGS PLAYED BACKWARDS HAVE SATANIC MESSAGES/OR SUBLIMINAL MESSAGES..ETC.(NO IM NOT SATANIC)LIKE OZZY, OR JUDAS PRIEST,ETC. I DONT KNOW WHAT TO THINK ABOUT THIS VIDEO.KINDA GAY, KINDA COOL...WHAT DO YOU GUYS THINK???

ICP does a ton of that stuff.