Big Gigantic, the electronic/jam outfit featuring saxophonist/producer Dominic Lalli and drummer Jeremy Salken, will headline Red Rocks for the first time on September 29. The duo formed in the shadow of the esteemed venue in 2008, and they have performed at the outdoor space a few times as a support act. Billed as Big Gigantic Presents Rowdytown, the evening event will feature some yet-to-be-announced support acts and additional spectacles. VIP packages will be available through CID Entertainment. Big Gigantic will perform at The Hangout’s pre-party on May 17.