18 (One Direction song)

"18" is a song by English-Irish boy band One Direction from their fourth studio album Four. The song was released on 17 November 2014 and was written by English singer Ed Sheeran and Oliver Frank. The song attained international success as it is certified gold in Australia and the UK.

Background
English singer Ed Sheeran spoke about writing the song for One Direction in an interview saying, "I kinda wrote it from their perspective." He also mentions, "I'm really happy with the record that I wrote for them. It's the first record I've actually specifically written for them." The track runs at 124 BPM and is in the key of F♯ Minor. The song was recorded at Enemy Dojo, The Mountains, Los Angeles.

As of 2014, "18" sold 4,922 copies in the UK and 38,610 copies in the US.

Personnel
Credits for "18" adapted from Genius.

Musicians

One Direction
 * Niall Horan – vocals
 * Zayn Malik – vocals
 * Liam Payne – vocals
 * Harry Styles – vocals
 * Louis Tomlinson – vocals

Additional musicians
 * Oliver Frank – writing
 * Luke Potashnick – guitar
 * Matt Rad – drum programming, keyboard, producer
 * Steve Robson – bass, producer
 * Ed Sheeran – writing

Production
 * Ian Dowling – engineering
 * Șerban Ghenea – mixing
 * John Hanes – mixing
 * Sam Miller – engineering, producer