Reviews were generally favorable. According to Metacritic, which combines reviews from the nations top critics, the album has a 64% approval rating from critics.
The Sun newspaper in the U.K. had an exclusive preview of the album and were the first ones to post the world’s first reviews of Circus. Of the track, “If U Seek [...]

Announced as the lead single from the album, “Womanizer” was first released to radio stations worldwide on September 26, 2008. It was released commercially in the United States on October 7, 2008 through digital distribution. It was released as a CD single on October 25, 2008 in Australia; November 14, 2008 in Germany; and on [...]