By Ariana Bacle
Updated May 06, 2015 at 09:15 PM EDT
Credit: Tiffany Rose/WireImage

Gwar, a metal band that features a vocalist named Vulvatron and a guitarist named Balsac the Jaws of Death, is known perhaps more for its out-there costumes and sometimes controversial shows than for its music—and those curious about how Gwar became, well, Gwar will get to find out soon when they release a history book about the band, titled Let There Be Gwar.

According to Loudwire, the book (over 350 pages long) will be “chock full of fascinating first-hand accounts and rare, never-before-seen photographs dating back to the mid-’80s when the seed of GWAR were formed under the moniker Dim Time.”

The book comes out Sept. 30, but is available for pre-order now.