"Sweet Refrain" is a standalone single released in late 2013, showcasing the group's signature synth-pop sound.
- The single was released on November 27, 2013, by Universal Music LLC.
- "Sweet Refrain" was included on the group's 2014 compilation album 'Clingy', a collection of their singles.
- The song was used as the theme song for the Japanese television drama 'Second Love'.
Perfume is a Japanese pop group formed in 2001. They are known for their futuristic sound and synchronized choreography.
Tracklist
