"Flashlight" is a song recorded by British singer and songwriter Jessie J for the soundtrack to the film Pitch Perfect 2 (2015). The song was written by Sia Furler, Christian Guzman, Jason Moore and Sam Smith. The song was originally obtained when one pre-ordered the Pitch Perfect 2 soundtrack in the United States, beginning on 23 April 2015; it later became available for download on its own. "Flashlight" was released in the United Kingdom on 11 May 2015 both on the soundtrack and as a stand-alone single. "Flashlight" was particularly successful in Australia, peaking at number two, and number seven in New Zealand.

Hailee Steinfeld performs a version of "Flashlight" titled the "Sweet Life Mix" in the film Pitch Perfect 2. Her cover of the song is included on the special edition of the film's soundtrack as well as Japanese version of Steinfeld's debut EP, Haiz (2015).

"Flashlight" received generally mixed reviews. In a less favourable review, Steven J. Horowitz of Billboard gave the song two stars out of five, saying: "prone to funny bone shout-singing on her more upbeat singles, Jessie J dials back her vocal force on the tepid "Flashlight", off the Pitch Perfect 2 soundtrack. The more subtle delivery would be welcome if the track weren't so paint-by-numbers, it plays like a pantomime of a Sia ballad, but without the emotive edge."

The music video (directed by Hannah Lux Davis) was released on 23 April 2015 on YouTube. In the video, Jessie J heads to Barden University (the campus of UCLA) where she performs the ballad while watching the students go about their days while walking around the campus, while scenes from Pitch Perfect 2 are shown.

The song is first sung by Barden University freshman Emily (Hailee Steinfeld) for her audition into the Barden Bellas, who have been suspended from competition. Emily explains that she writes songs to compensate for her anxieties, in this case, leaving home. Emily sings the song again later during the "Riff Off" which, due to it being an original song, causes the Bellas to be disqualified.

...
Wikipedia