Rock and metal stars got into the Halloween spirit this year, dressing up in all sorts of wacky costumes, and in some cases, as each other.

From frightening, to confusing, bizarre and hilarious, members of Metallica, Machine Head, Motley CrueIwrestledabearonce + more acts showcased their Halloween spirit with some awesome costumes. Check them out below!

Nikki Sixx's Crazy Clown Makeup
Machine Head's Robb Flynn as a Viking
Machine Head's Adam Duce as a Caveman
Iwrestledabearonce as Korn!
Lacuna Coil's 'Creepy' Cristina Scabbia
Lacuna Coil Full Band Costumes
Sammy Hagar in Paradise + Metallica's James Hetfield as Sammy Hagar
Bring Me the Horizon Goes Transgender
Every Time I Die Werewolf
Betraying the Martyrs Go Black Metal
Oceano's Assorted Mix