I've only recently discovered after doing some research for an upcoming trip to Japan them and cant stop listening to them. For me, the contrast between the Thrash Metal and J-pop Idol and crashing them together is something I never would have thought of, and is quite addicting.

For anyone Curious:

They've also packed the Saitama Super Arena in Japan with 20,000 fans, and I can't get over not hearing about them until now.