The Smashing Pumpkins [ tickets ] have begun to roll out more dates for their upcoming summer tour, which celebrates the group's 20th anniversary.

The band will kick off the previously announced run Aug. 8 in Davenport, IA, with four additional dates joining the single show announced last week.

The Aug. 9 Hammond, IN, show, which was the first date announced and which went on sale last week, is sold out. All other dates go on sale Saturday (7/19) except the Clearwater, FL, show, which goes on sale Friday (7/18).

"The August tour is going to be a blast," frontman Billy Corgan said in a statement. "Expect a very loud and raucous show from us ... and we are very, very happy to know we will finally be playing our own shows come November in New York, LA, and Chicago.

"The 20th Anniversary shows will be magical ... we are already working on lots of surprises"

The Pumpkins' trek last year was the band's first full-scale North American outing since 2000. In addition to original members Corgan and drummer Jimmy Chamberlain, the group features touring members Jeff Schroeder (guitar) and Ginger Reyes (bass). Founding members James Iha and D'arcy Wretzky have opted out of the group's reunion plans for now.

Last year the band toured in support of "Zeitgeist," its sixth album and first collection of new material since 2000's "Machina/The Machines of God." The set reached No. 2 on The Billboard 200 and the lead cut, "Tarantula," peaked at No. 2 on the magazine's Hot Modern Rock Tracks chart.

A four-song EP, "American Gothic," was released in January, and Corgan and Chamberlain have been working on new material in a recording studio the pair jointly purchased in Chicago, with another new single due in September, according to the band's website.