Army (Ellie Goulding song)

"Army" is a song by English singer Ellie Goulding from her third studio album, "Delirium" (2015). The song was serviced to contemporary hit radio in the United States on 19 April 2016 as the album's third single in North America, and second overall on 9 January 2016. 
Composition.
"Army" is written in the key of B major with a tempo of 87 beats per minute. Goulding's vocals span from B3 to B4. The song was written about Goulding's best and closest friend, Hannah.
Music video.
The music video for "Army" was directed by Conor McDonnell and premiered on 14 January 2016. Shot in black and white, the video features Goulding having fun with friends in several settings, as well as performing the song live.
Credits and personnel.
Credits adapted from the liner notes of "Delirium".
Recording
Personnel