Due to overwhelmingly popular demand, Pearl Jam, one of the biggest bands in the world, is adding two more shows to their run to help close the Spectrum on Tuesday, October 27, and Saturday, October 31. Pearl Jam will have the distinction of being the final act to play the Spectrum. Pearl Jam is already slated to perform in the Spectrum on Wednesday, October 28 and Friday, October 30. Pearl Jam will release their ninth studio CD, “Backspacer,” on Tuesday, September 22.

Tickets will go on sale exclusively through ComcastTIX on Friday, August 14 at 10 a.m. at ComcastTIX.com, by calling 1-800-298-4200, in person at the Wachovia Complex box office or select Acme Markets. Tickets are also on sale at LiveNation.com.

The Final Farewell Concert Series at the Spectrum also features Bruce Springsteen and the E Street Band at the Spectrum on Tuesday, October 13, Wednesday, October 14, Monday, October 19, and Tuesday, October 20, and Leonard Cohen on Wednesday, October 21.

The Spectrum, which opened on September 30, 1967, with the Quaker City Jazz Festival, quickly established itself as “America’s Showplace,” hosting championships, all-star games, Final Fours, and thousands of concerts. Some of the most memorable sporting events in the arena’s illustrious 42-year history include the Philadelphia Flyers winning the Stanley Cup against the Boston Bruins on May 19, 1974; the Flyers defeating the Soviet Red Army Team on January 11, 1976; Julius Erving and the Philadelphia 76ers run to the 1983 NBA Championship, including one of the most spectacular dunks ever, Ervin’s “Rock the Baby to Sleep”; Indiana University capping off an undefeated men’s basketball season and winning the 1976 NCAA National Championship; and Christian Laettner’s “shot heard ‘round the world,” scoring a buzzer beater against Kentucky to launch the Duke Blue Devils in the Final Four on March 28, 1992.

The Grateful Dead played 57 shows in the Spectrum, which includes four shows as The Dead (2002 and 2009), that’s more than any other musical act in the arena’s history. Bruce Springsteen, who has four more shows to add to his total at the Spectrum, is second with 32 shows.