"LaserLight" is a song by British singer-songwriter Jessie J featuring French DJ David Guetta, taken from the re-release edition of Jessie J's debut studio album, Who You Are. The artists co-wrote the song with The Invisible Men, Giorgio Tuinfort, and Frédéric Riesterer. The song was released on 13 May 2012 in the United Kingdom, as the seventh overall and final single from the album. Ahead of its official release, "LaserLight" became Jessie J's sixth top 10 hit in the UK – peaking at number five – making her the first British female to have six top 10 singles from one album.

The song was written by Jessie J, The Invisible Men, David Guetta, Giorgio Tuinfort and Frédéric Riesterer and produced by Guetta, Tuinfort and Riesterer. After Jessie provided guest vocals on Guetta's track "Repeat", he offered to return the favour, and as such, the pair wrote "LaserLight" for the platinum edition of Jessie's debut studio album, "Who You Are". Jessie describes "LaserLight" as an upbeat, shimmering Eurodance and house song, that features the lyrics, "You make me feel good, you make me feel safe, you make me feel like I could live another day." The release of "LaserLight" as a single was confirmed by Jessie on 17 February 2012, during an interview on BBC Radio 1. During the interview, she claimed that the music video for "LaserLight" would be filmed during the first week of March. The video was released on 10 April.

According to the sheet music published at Musicnotes.com, "LaserLight" is written in the key of B major with a tempo of 127 beats per minute. It follows the chord progression B−D♯m−G♯m−E, and Jessie J's vocals span from F♯₃ to E₅.

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