The 2017 edition of the Psycho Las Vegas festival was already super stacked, and now it just got even more exciting. King Diamond was added as a headliner, and he'll be playing 1987's Abigail in full (like he did on tour in 2015). It's billed as his only US date of 2017.

As previously announced, the fest also includes Swans, Neurosis, Abbath, Carcass, Melvins, Chelsea Wolfe, Cult of Luna & Julie Christmas, Oathbreaker, Pelican, Sumac, Myrkur, Murder City Devils, WIndhand, Code Orange, Magma, Inter Arma, and many more.

The fest goes down August 18-20 at the Hard Rock Hotel and Casino in Vegas. Tickets are still available. Updated lineup below.

Psycho Las Vegas -- 2017 Lineup
KING DIAMOND
MURDER CITY DEVILS
NEUROSIS
MULATU ASTATKE
SWANS
CARCASS
WOLVES IN THE THRONE ROOM
CRYSTAL FAIRY
MAGMA
CHELSEA WOLFE
SLO BURN
CULT OF LUNA WITH JULIE CHRISTMAS
ABBATH
SUMAC
MYRKUR
PELICAN
WEEDEATER
ZEAL & ARDOR
SLOMATICS
OATHBREAKER
VHOL
COUGH
BLOOD CEREMONY
INTER ARMA
THE SKULL
WINDHAND
BUZZOVEN
MINSK
CODE ORANGE
KHEMMIS
GATECREEPER
NORTH
CULT LEADER
SNAIL
WIZARD RIFLE
MERLIN
FLOORIAN
DOMKRAFT
ELEPHANT TREE
MORNE
HOLLOW LEG
SUMMONER