If you've never heard mariachi versions of your favorite rock and metal songs, now is your chance. Metalachi are a mariachi band based in Hollywood, Calif. Consisting of five siblings born in Juarez, Mexico, the band is known for their covers of famous rock and metal songs. From Metallica to Iron Maiden to Alice in Chains, they've done it all.

Mariachi is a style of music that originated in western Mexico in the 18th century, typically consisting of acoustics, drums and horns. It has its own unique fashion and dancing.

Whether you're celebrating Cinco De Mayo or just want to know what on earth we're talking about - sit back, relax and get the tequila ready.

Ozzy Osbourne - "Crazy Train"

Van Halen - "Hot for Teacher"

Dio - "Rainbow in the Dark"

Slayer - "Raining Blood" (feat. Dave Lombardo of Slayer)

Guns N' Roses - "Sweet Child O' Mine"

Metallica - "Master of Puppets"

Black Sabbath - "War Pigs"/ACDC - "Thunderstruck"

Motorhead - "Ace of Spades"

Alice in Chains - "Man in the Box"

Judas Priest - "Breaking the Law"