LOS ANGELES TIMES, Oct. 7 1990 (an original vintage newspaper leaf from the Calendar section)  This offering consists of four complete pages (two double-sided sheets on one single leaf) featuring a collectible print advertisement for a upcoming live performance by "CHICAGO" at Caesars Palace in Las Vegas on one of the four pages.

In addition to the feature concert ad, which captures the era's unique promotional graphic design and typography, the surrounding pages provide a fascinating cultural snapshot of late 20th-century entertainment. Printed on authentic aged newsprint with genuine vintage toning, this original leaf is not a modern reprint, making it an ideal candidate for custom framing, local history display, or inclusion in a dedicated rock or pop culture memorabilia collection.

Experience music history in the making with authentic, original newspaper advertisements capturing the opening-night premieres of legendary live concert performances, sourced straight from the entertainment capital of the world.

Background: Chicago’s six-night stand at the legendary Circus Maximus Showroom inside Caesars Palace from October 17–22, 1990, stands out as an exceptionally rare, transitional snapshot in the band’s storied history. Coming right at the tail end of their late-’80s commercial resurgence—driven by massive chart-toppers like "Look Away" and "You're the Inspiration"—this run featured a fleeting, distinct lineup anchored by lead guitarist Dawayne Bailey and bassist/vocalist Jason Scheff, alongside core founding horn section members Robert Lamm, Lee Loughnane, James Pankow, and Walt Parazaider. What makes this engagement particularly notable and scarce for collectors and fans is its placement on the eve of the release of Twenty 1 (1991), capturing the group at peak vocal harmony and slick late-era production value while performing in an intimate, high-end casino showroom rather than their usual massive arenas. Recorded material and bootleg media from this specific autumn 1990 Caesars Palace residency remain remarkably hard to come by compared to their televised specials or standard arena tour stops of the era, making documentation of these six consecutive nights a sought-after piece of Chicago live history.