(KABC) -- Actor Danny Trejo visited the ABC7 studios with his new Trejo's Tacos taco truck Monday. His taco joint, which opened last year, has been a big hit. Now he's hitting the road with a taco truck featuring traditional tacos, along with gluten-free and vegetarian options.

On a summer night in 1974, Raúl and Lupe stationed their taco truck next to an East LA bar where they became popularly known. Writer and journalist, Gustavo Arellano has credited Raúl as the inventor of the modern taco truck. Fun Fact: In Mexico, it is custom to name your truck - Raúl named his La Güera.

In 1975, Raul Martinez bought and opened his very first traditional, standing "King Taco" restaurant, in Cypress, California.

Let's start with the undisputed kings of the LA food truck kingdom: the taco trucks. Over 4,000 strong, according to Wikipedia (although some nights it feels like there's one on every corner), these culinary titans offer up al pastor that would make angels weep and carne asada that could power a Tesla.