"
Circus" is a song recorded by American singer
Britney Spears for her sixth studio album
of the same name (2008). It was released on December 2, 2008, by
Jive Records as the second single from the album. Written by
Dr. Luke,
Claude Kelly and
Benny Blanco, "Circus" is a metaphor for the public's perception of Spears' life. After she listened to the track for the first time, she felt inspired to create an album and a tour with a
circus theme. "Circus" is an uptempo
electropop and
dance-pop song with elements of
pop rock and "half-
rapped" vocals. The song's lyrics talk about being an entertainer and putting on shows.