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
Perfume (Britney Spears song) cut version of the video, where Spears' role in the video is actually an assassin hired to kill her boyfriend. Spears included the song on her residency concert (2013–16). The song has sold over 300,000 copies in the United States. In July 2013, Spears revealed through Twitter that she "wrote such a special song" with Australian singer-songwriter Sia Furler, which was later revealed to be Spears' favorite track on "Britney Jean", the ballad "Perfume". In October 2013, it was announced that the song would serve as the second single for the album, after the release of lead single "Work Bitch"