


It received an analysis from the critics, who saw the road representing titular non-disclosure agreement or different parts of the singer's life. "NDA" was promoted by a self-directed music video, which depicts Eilish walking alone on a desert road as cars race around her. Commercially, the single reached the top 20 in Australia, Canada, Greece, Ireland, Lithuania, New Zealand, Norway, and the Billboard Global 200 chart, while in the artist's native United States, the single logged position 39. Additionally, in some reviews, issues were taken with the song's lack of relatability or placement within Happier Than Ever. The track's production and vocal performance were acclaimed, while its themes left some critics divided. The song received mostly favorable reviews from music critics, who often called it dark and pulsating. However, it is the third song supporting the project that impacted mainstream radio in the United States. The track was released by Interscope and Darkroom Records as the album's fifth single on July 9, 2021. Additionally, the song transitions into the following album track, " Therefore I Am". Lyrically, "NDA" speaks about Eilish's battles with fame and for privacy, as well as touching on her relationships.

It is an alt-pop, dark-pop, electropop, industrial, and progressive pop track, which contains elements of trip hop, techno-pop, and trance, accompanied by diverse lyrical content. The song was written by Eilish and her brother Finneas, and produced by the latter. " NDA" (an acronym for " non-disclosure agreement") is a song recorded by American singer Billie Eilish, from her second studio album, Happier Than Ever (2021).
