Genre crossover: is it the way forward?

Anyone will tell you that there is no music around to day that can truly be called "revolutionary". This is simply because since Nirvana there have really been no new movements, no new genres. New bands pop up with "new and exciting sound" that is actually "new and exciting sound that sounds exactly like some band from the '80s that sounds pretty similar to some band from the '70s". Rock and pop are genres obsessed with their own past. Experimenting is no longer an option what with the uniform mainstream where everything sounds the same and is ruled by a song structure bible (verse + chorus +  verse + chorus + bridge + chorus x2 + autotune + a video involving a party and some skantily clad dumb looking models), and on the alternative side everything can be traced back at least 20 years. Even a genre as strange and interesting as dubstep sounds horribly similar to some of the rave music from the '90s and other experimental stuff from the '80s. The question is, how do you create a completely new sound when you have over 50 years of rock and pop installed in your brain? There is possibly one answer to this... genre crossover! Take Sleigh Bells for example. Their music is a slightly messed up combination of barbie style vocals, heavily distorted metal guitar, and even some really odd synths that just make it that little bit wierder. Even their album cover (cheerleaders with their faces blotted out) seems to say it all. This band's sound is a combination of contrasting genres that have created something that sounds pretty much like nothing else ever done before. And it's pretty multifunctional -  you can headbang to it, robo dance to it, what more could you want? Please music industry, don't let the beautifully unoriginal sound of American alternative rock die out, but make way for Sleigh Bells and others like them. We may have a combination of jazz and dubstep anytime now.