Circus (Britney Spears album) "Circus" marked the longest time she had spent recording an album, adding, "I think it is more urban [...] I'm writing every day, right here at the piano in this living room" and also described the album as her best work to date. Producer Claude Kelly discussed the album's initial lack of concept saying, "When I went in with [Dr. Luke] we knew we were going to maybe write something for [Britney], but there was no concept, it was just knowing her style and knowing what she does. Max Martin, who produced Spears' debut single "...Baby One More Time", produced
Alien (Britney Spears song) Gaga, as suggested by a tweet posted to Twitter by executive producer will.i.am, although such a collaboration never came to fruition. On November 18, preceding the release date of "Britney Jean" on December 3, a demo version of the track was leaked online; Orbit commented that it was the "right song [with the] wrong chorus notes", which had been corrected on the final production. On December 22, Spears announced through her E! documentary special "I Am Britney Jean" that "Alien" would likely be released as a single from "Britney Jean" in 2014. In July 2014, audio leaked of Spears singing