One of the best Japanese metal bands EVAR! They formed in 1996 and have gone through 12 members ending with Anchang with lead vocals and guitar, Ryotatsu on guitar, and Ken'ichi on drums. They have 10 albums and 17 singles. They used to be visual kei but have toned down a bit. They're close to Dir En Grey in awesomeness.
Guy1: Have you heard that new Sex Machineguns album?
Guy2: Hells yeah! That song Tekken II Rulez!!!