Should i get D7000 or is Edition 8 better for Jpop
Depends on how much bass you want, and how much comfort you want.
I find Ultrasone's to be very uncomfortable (and the ED 8 seems no different than the others). D7000 is pretty much the most comfortable headphone I've ever worn.
Denon's are probably going to pump out more bass, but it may be overwhelming and boomy for some (tightens up with the right amp, and burn in).
ED 8s will get you more refined bass and better mids (so I've heard). This may give it the edge up for things like JPop.
...Then there's the price. D7000s brand new can be had for around 700 - 750 USD nowadays. ED 8s are still going to run you double that.
On Topic: Hnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnngh...She really is one of the most attractive women in the world, IMO. And this just made her...more attractive.