This year's Monster Energy Aftershock festival is set to take place in Sacramento, California on October 24 and 25 with such headliners as Slipknot, Marilyn Manson, Faith No More and Deftones—not to mention an equally impressive undercard with Bring Me The Horizon, Coheed And Cambria, All Time Low and many more gracing the stages during the full weekend event. However, things really kick off the night before the festival begins as the Aftershock pre-party is set to take place on October 23 from 7 p.m. till midnight at Slipknot's Scream Park haunted house event. 

Read more: Slipknot, Bring Me The Horizon, Marilyn Manson, more announced for Aftershock 2015

Hell Or Highwater will headline the pre-party event which will include plenty of live music, food trucks and a discounted price for attendees to experience the three haunted houses on site. Entrance to the pre-party is free for Aftershock festival ticket holders but space is limited so get there early if you plan to attend. More bands and information will be provided soon. You can keep a look-out on the festival's website and also pick up tickets if you're yet to do so.