The venue has a total capacity of 20,000, consisting of 7,000 seat underneath the roof, and a further 13,000 seating capacity on the lawn. Costing $12 million to be built, the opening show was on 14th June 1991 and headlined Steve Winwood. The venue is owned and operated by Live Nation. The Hollywood Casino Amphitheatre has been known by various different names throughout it’s history as Riverport Amphitheatre when it open in 1991 until 2002, UMB Bank Pavilion between 20, and Verizon Wireless Amphitheater St. Louis, in Maryland Heights, Missouri, the amphitheater plays host to a live music schedule in the summer months, and has a history of staging some of the most popular bands and live acts in the world, as well as the most popular festivals.Ĭlick here to view the events schedule for Hollywood Casino Amphitheatre. Louis) is an outdoor music venue with a capacity of 20,000. Hollywood Casino Amphitheatre (formerly known as formerly Verizon Wireless Amphitheater St.