ay Pritzker Pavilion and the Great Lawn
The centerpiece of Millennium Park is the Jay Pritzker Pavilion, a bandshell designed by Frank Gehry. The pavilion has 4,000 fixed seats, plus additional lawn seating for 7,000; the stage is framed by curving plates of stainless steel, characteristic of Gehry. It was named after Jay Pritzker, whose family is known for owning Hyatt Hotels and was a major donor. The Pritzker Pavilion is Grant Park's outdoor performing arts venue for small events, and complements Petrillo Music Shell, the park's older and larger bandshell. The pavilion is built partially atop the Harris Theater for Music and Dance, the park's indoor performing arts venue, with which it shares a loading dock and backstage facilities. The pavilion is seen as a major upgrade from the Petrillo Music Shell for those events it hosts. Initially, the pavilion's lawn seats were free for all concerts, but this changed when Tori Amos performed the first rock concert there on August 31, 2005.