The Hollywood Casino Amphitheatre is a 7,000-seat outdoor concert venue, with lawn seating for another 13,000, making it a 20,000 person capacity venue. It is located at 14141 Riverport Drive, Maryland Heights, Missouri, near St. Louis, one mile west of the I-270 and I-70 interchange, at I-70 and Earth City Expressway South .Venue owner Live Nation announced Dec 17, 2014 that they had signed a multiyear agreement with Hollywood Casino in Maryland Heights, which is owned and operated by Penn National Gaming, to be the amphitheater's title sponsor. The length of the agreement was not disclosed.The venue was built for approximately $12 million, and opened on June 14, 1991, with a performance by Steve Winwood.Shortly after opening, the amphitheater became the site of the infamous Riverport Riot, July 2, 1991, during a Guns N' Roses concert, during their Use Your Illusion Tour.In 1998, Contemporary Group, who built the amphitheater, was acquired by SFX. SFX corporate successor Live Nation Entertainment continues to own and operate the venue.On June 9, 2000, the bands REO Speedwagon and Styx performed at the venue together and released Arch Allies Live at Riverport and releasing 2 single-disc versions for Styx and one for REO.
