Britney Spears Zone" and "Blackout". She has also experimented with genres such as dubstep, first on "Blackout"'s "Freakshow" and again on "Hold It Against Me" from "Femme Fatale". Spears' music also has been described as Spears is a soprano. Prior to her breakthrough success, she is described as having sung "much deeper than her highly recognizable trademark voice of today", with Eric Foster White, who worked with Spears for her debut album "...Baby One More Time", being cited as "[shaping] her voice over the course of a month" upon being signed to Jive Records "to where it is today—distinctively, unmistakably Britney". Rami
The Circus Starring Britney Spears Alanis Morissette songs on some North American dates. The Circus Starring Britney Spears generated positive to mixed reception from critics. While some praised its aesthetics and deemed it as an entertaining show, others criticized Spears' lack of involvement during some segments. The tour was a commercial success, with a total gross of $131.8 million. This made The Circus Starring Britney Spears one of the highest-grossing tours of the decade. A great number of tickets were sold within a week of the tour's announcement, which prompted supporters to add more dates. The tour also broke attendance records in many cities and