After gradually rolling out this year's lineup, the full lineup for Psycho Las Vegas 2019 is finally here, including even more big and exciting names. Newly-added headliners Megadeth and Opeth join the festival, alongside previously announced headliners Electric Wizard, and other new additions include the newly reunited Vio-lence, Mogwai, Dead Meadow, 1349, Have A Nice Life, Yakuza, Two Minutes To late Night, and more. There will also be a closing ceremony by Andrew WK.

The new additions join such previously announced names as Clutch, Godspeed You! Black Emperor, Beach House, High on Fire, Bad Religion, The Black Angels, Mark Lanegan, Uncle Acid & the Deadbeats, Graveyard, Deafheaven, Glassjaw, The Faint, Cold Cave, Fu Manchu, Triumph of Death, Carcass, Power Trip, The Crazy World of Arthur Brown, Oranssi Pazuzu, YOB, Black Mountain, Full of Hell, Goatwhore, The Obsessed, En Minor, Amenra, Nothing, Grails, Devil Master, Tomb Mold, Candy, and more. This is the festival's biggest and most musically diverse lineup yet, and needless to say, it's totally stacked from top to bottom.

Psycho goes down August 16-18 at Mandalay Bay, and tickets are still available. There's also the Psycho Swim pool party pre-show happening one day earlier with Corrosion of Conformity, Lucifer, Danava, ASG, Primitive Man and others.

Full lineups for Psycho Las Vegas and Psycho Swim below...

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Psycho Las Vegas -- 2019 Lineup

Megadeth

Opeth

Electric Wizard

Clutch

Godspeed You! Black Emperor

Beach House

High On Fire

Bad Religion

Mogwai

The Black Angels

Mark Lanegan

Uncle Acid & The Deadbeats

Graveyard

Deafheaven

Glassjaw

The Faint

Cold Cave

Fu Manchu

Triumph Of Death

Carcass

Rotting Christ

Power Trip

1349

Old Man Gloom

The Crazy World Of Arthur Brown

Tobacco

Dead Meadow

Oranssi Pazuzu

YOB

Black Mountain

Full Of Hell

Goatwhore

The Obsessed

En Minor

Kadavar

Amenra

Nothing

Perturbator

Soft Kill

Vio-lence

Truckfighters

Dvne

Grails

Have A Nice Life

Yakuza

Mork

Royal Thunder

Warhorse

Hangman’s Chair

L.A. Witch

Sprindrift

Twin Temple

Ilsa

Devil Master

Night Horse

Tomb Mold

Monophonics

Polyrhythmics

Electric Citizen

Led Zeppelin II

Motorbabe

Candy

Levitation Room

Hellfire

Mother Mercury

Two Minutes To Late Night

Closing Ceremony by The King of Party, Andrew W.K.

Psycho Swim (Psycho Las Vegas Pre-Party)

Corrosion Of Conformity

Lucifer

Danava

ASG

Primitive Man

Howling Giant

Idle Hands

Thrown Into Exile