Circus produced four singles. "Womanizer" debuted at number 96 on the US Billboard Hot 100 and ascended to the summit in its second week, registering the largest leap on the chart at the time. It became Spears' best-selling single in the country since her debut "...Baby One More Time" (1998). "Circus" debuted and peaked at number three on the Billboard Hot 100; consequently, Circus became Spears' first album since her debut ...Baby One More Time (1999) to have two top-ten singles. Subsequent singles "If U Seek Amy" and "Radar" peaked at numbers 19 and 88 on the Billboard Hot 100, respectively. To further promote the album, Spears embarked on the world tour The Circus Starring Britney Spears (2009).

Season 6 Episode 1 - Womanizer

During the introduction, Spears is naked and smiling in a sauna, while covering herself with her hands. These scenes are seen throughout the video. When the first verse begins, the official version of Spears wearing a slip nightgown is making breakfast for her boyfriend (Brandon Stoughton) as he gets ready for work. When he is at the office, he sees a new secretary, which is actually Spears in disguise wearing horn-rimmed glasses and a pencil skirt. She starts dancing in front of him and sings the chorus. She makes him follow her into the photocopier, where she photocopies her buttocks. Then, Spears is disguised as a red-haired, tattooed waitress in a restaurant. She dances around him with her dancers and plays with him over the kitchen counter. After this, her boyfriend is seen getting driven home by Spears, disguised as a chauffeur. She starts to kiss him, driving the car with her heel until both get home. Air Date : 10th-Oct-2008  Read More

Season 6 Episode 2 - Circus

The video begins with Spears at a vanity, putting Curious on and earrings by Bulgari. She is then seen holding a top hat in front of her face, while doves fly out of another hat. Spears starts singing in the vanity but stands up and puts on a ringmaster jacket. She walks through an aisle while dancing suggestively with several circus dancers. Throughout the video, there are interspersed scenes of different circus performers, including ribbon dancers, contortionists, clowns and a mime on stilts. There are also scenes of Spears singing with the top hat, wearing a nude body stocking in front of a red curtain, with a spotlight on her. This is followed by a group dance scene in the middle of a circus ring, where Spears wears the ringmaster jacket, sequined hot pants and a feathered top hat. Air Date : 4th-Dec-2008  Read More

Season 6 Episode 3 - If You Seek Amy

Spears starts singing while sitting on the edge of a bed while the people that surround her are getting dressed. She gets up and looks out the window. As the first verse ends, she picks up a pair of panties from the floor, recalling her personal struggles and the "Piece of Me" video. She dances with four male dancers in the first chorus. During the second chorus, she dances with four other female dancers dressed in cheerleading outfits, while many men are watching them dance. The screen fades to white and Spears begins to change into a conservative 1950s-inspired housewife outfit. As the chorus begins again, she comes out of her bedroom. She walks down the stairs, with dancers surrounding her and a woman gives her a potholder, which she uses to pick up a pie. Air Date : 12th-Mar-2009  Read More

Season 6 Episode 4 - Radar

The video begins with Spears arriving at a polo mansion. She comes out from the car wearing a vest, jeans and showing her midriff. She starts singing while her boyfriend welcomes her. They walk past a barn, where a polo player is sitting. They look at each other briefly and she starts to sing in a balcony, watching the second man with a pair of binoculars. At the end of the first chorus, her boyfriend comes and puts a studded necklace around her neck, as a surprise gift. Until the end of the second chorus, we see scenes of Spears singing and watching the polo player as he gets ready. When the bridge begins, Spears arrives at a match wearing a white dress and a large hat. When the match ends, she leaves and the second man follows her. They flirt inside a hallway and leave. Her boyfriend notices her absence, walks into the hallway and sees her necklace on the floor. The video ends with Spears and the second man walking into the sunset. Air Date : 1st-Jul-2009  Read More

Season 6 Episode 5 - Kill the Lights

The video begins with an animated Danja saying his introduction of the song, while paparazzi are in the background taking several pictures. Then, we see an animated Spears jumping into her rocket ship, flying and avoiding several paparazzi that are following her. She hides on another planet, turning all the lights of it on as she walks, and escaping the paparazzi that later appear to stalk her. However, Spears manages to avoid them, flying away into space in her rocket ship again, but this time exploding the planet and "killing all the lights" of it maneuvering a joystick. Air Date : 27th-Jul-2009  Read More