Just received word from Monolith curator Matt Fecher that the annual fall festival, headlined this year by the Mars Volta and the Yeah Yeah Yeahs, has just added more than a dozen local DJs to its lineup. Nationally renown turntablist DJ Vajra heads the roster, which also includes Mu$a, who just performed over the weekend with Pretty Lights at City Hall, Cysko Rokwell of 3 the Hardway, Satan's Eighties Lovechild, Boyhollow of Lipgloss, Klaw, Mike Deez, Metat, Scotty Matelic, Option 4, Neo Vizion, Self-Inflicted, Seve7h Wave and Digital Disko. Tickets for the two-day event, which takes place at Red Rocks on Saturday, September 12 and Sunday, September 13, are on sale now from $59 (single day tickets) to $225 (VIP gold passes).