The Circus Starring Britney Spears, commonly referred to as the
Circus Tour, was the seventh
concert tour by American singer
Britney Spears. It was launched in support of her sixth studio album,
Circus (2008). Rumors of a tour arose as early as October 2007, after Spears released her fifth studio album
Blackout; however, it was cancelled due to unknown reasons. The tour was officially announced in December 2008, with dates for American and British venues revealed. The stage was composed of three rings and set in-the-round to resemble an actual circus. Fashion designers
Dean and Dan Caten created the costumes. A giant cylinder screen was set above the stage to showcase videos and backdrops. Effects were provided by Solotech.
Magician Ed Alonzo joined Spears during the second act. The setlist was composed generally from her albums
In the Zone,
Blackout and
Circus. Spears announced she would tour Australia for the first time in June 2009.