Loud Rock's Secret Latin Tinge

With not nearly enough exceptions, loud guitar rock has been a notorious dancefloor wallflower for the past 30 years or so: Pretty much ever since disco scared its syncopations stiff. Kind of weird, for a genre originally steeped in the blues and r&b. But one of hard rock's secrets has long been Latin counterrhythms in its closet. The following playlist -- honoring conga-metal from both sides of several different borders -- is all the proof anyone should require.