Cro-Mags.

Cro-Mags are a hardcore punk turned crossover thrash band from New York City. The band, which had a strong cult following, has released five studio albums, their first two considered the most influential. With a hare-krishna background, they were among the first bands to fuse hardcore punk with thrash metal and were associated with the birth of a tougher attitude within the hardcore scene in the late 1980s, related to the world of martial arts. John Joseph McGowan and Harley Flanagan are practitioners of boxing and Brazilian Jiu-Jitsu respectively.