The Disco Biscuits headlined Morrison, CO’s Red Rocks Amphitheatre for the second time this past Saturday night. The performance was part of the band’s multi-night Bisco Inferno event, which included performances at nearby venues such as Boulder’s Boulder Theater (Thursday) and Denver’s Ogden Theater (Friday). The group nodded to its Flash Mob surprise show Thursday afternoon by opening its show Thursday night with “Flash Mob.” The quartet also debuted the new song “The Bridge” on Friday.

Saturday’s headlining performance at Red Rocks featured a number of support bands, including The Crystal Method, Booka Shade, Aeroplane, The Pnuma Trio and The Glitch Mob. The Disco Biscuits bolstered its own stage setup with three LED light screens and pyrotechnics. The group also bookended its first set with its classic “Hot Air Balloon” and brought out RAQ guitarist Chris Michetti for Marc Brownstein’s new “Portal To An Empty Head” and “M.E.M.P.H.I.S.” The guitarist augmented the band on the road this spring while guitarist Jon Gutwillig recovered from a recent wrist injury.

While in Colorado, all four members of the Disco Biscuits played other shows. Brownstein and keyboardist Aron Magner played as Conspirator at Boulder’s Fox Theatre late Thursday night. Michetti emerged for “Oname Wa” and “Park Avenue” during the performance, while Big Gigantic saxophonist Dominic Lalli played on “Loco Street Devil” and Pnuma Trio’s Alex B emerged for an improvisation before “Commercial Amen.” In addition, on Sunday night Gutwillig played an extremely rare acoustic show at the Fox Theater. The guitarist ran through a mix of songs, including “I-Man,” “Mulberry’s Dream,” “Fish out of Water,” “Window in the Rain,” “Loose Change,” “Reactor,” “Bazaar Escape” and “Kitchen Mitts.” Gutwillig showcased his comedy skills between songs, crooned to a girl onstage during “Brit Pop” and played a verse of the Biscuits song “ Aquatic Ape.” He also brought out Disco Biscuits drummer Allen Aucoin for “And the Ladies Were the Rest of the Night,” “Pilin it Higher,” “Digital Buddha,” “Rockafella,” “Big Wrecking Ball” and “Barfly,” among others.

The Disco Biscuits confirmed that they will return to Red Rocks in 2011.