Question: X, is the second studio album by English singer-songwriter, Ed Sheeran, which song single did he record?

Context paragraphs:
One (Ed Sheeran song): "One" is a song recorded by English singer-songwriter Ed Sheeran for his second studio album, "x" (2014).  Sheeran wrote the song immediately after releasing his debut album, "+" (2011).  It marked the last occasion wherein Sheeran wrote about his former girlfriend, who inspired all the romantic compositions on "+".  "One" was produced by frequent collaborator Jake Gosling and its music was based primarily on acoustic guitar.  Critics were generally positive toward the song; it was noted for its guitar-driven sound and Sheeran's use of falsetto.

Castle on the Hill (song): "Castle on the Hill" is a song by English singer-songwriter Ed Sheeran.  It was released as a digital download on 6 January 2017 as one of the double lead singles from his third studio album "÷" (2017), along with "Shape of You".  "Castle on the Hill" was written and produced by Ed Sheeran and Benny Blanco.

Afire Love: "Afire Love" is a song recorded by English singer-songwriter Ed Sheeran for his second studio album, "×" (2014).  The song is about Sheeran's late grandfather who suffered from Alzheimer's disease.  The record, which was produced by Snow Patrol member Johnny McDaid, samples elements of "Remembering Jenny" composed by Christophe Beck for the soundtrack to the American television series "Buffy the Vampire Slayer".

Photograph (Ed Sheeran song): "Photograph" is a song recorded by the English singer-songwriter, Ed Sheeran, for his second studio album, "×" (2014).  Sheeran wrote the song with Snow Patrol member, Johnny McDaid, who had a piano loop from which the composition developed.  After recording several versions with other producers, Sheeran eventually solicited help from Jeff Bhasker; the collaboration generated a version that Bhasker further enhanced for months.  The ballad derives its music primarily from an acoustic guitar, piano and programmed drums.  With visually descriptive lyrics, it discusses a long-distance relationship inspired by Sheeran's own experience of being away from his then-girlfriend while he was on tour.  IDA

X (Ed Sheeran album): x (pronounced "multiply") is the second studio album by English singer-songwriter, Ed Sheeran.  It was released on 20 June 2014 in Australia and New Zealand, and worldwide on 23 June through Asylum Records and Atlantic Records.  The album received positive reviews from music critics.  It was an international commercial success, peaking at No. 1 in fifteen countries, while topping both the UK Albums Chart and the US "Billboard" 200.  "x" also reached the top 5 in seven other countries and was the best selling album of 2014 in Australia, New Zealand, Ireland, and the United Kingdom.  Five singles were released from the album: "Sing", "Don't", "Thinking Out Loud", "Bloodstream" (a collaboration with Rudimental), and "Photograph".

Don't (Ed Sheeran song): "Don't" is a song recorded by English singer-songwriter, Ed Sheeran, for his second studio album, "×" (2014).  Written by Sheeran and Benny Blanco and produced by Blanco and Rick Rubin, the song samples "Don't Mess with My Man" by Lucy Pearl.  It was initially planned as the album's lead single, but was passed over in favour of "Sing".  It was instead released to iTunes on 13 June 2014 as the second "instant grat" promotional single from "×".  "Don't" officially impacted US contemporary hit radio on 15 July 2014 and was released independently on 24 August 2014 as the album's second single.

Drunk (Ed Sheeran song): "Drunk" is a song by English singer-songwriter Ed Sheeran.  It was released as the fourth single lifted from the debut studio album "+" on 17 February 2012.  The song was written by Ed Sheeran and Jake Gosling and produced by Gosling.  The single entered the UK Singles Chart at number 63.  The week after, it climbed to number 29.  Later on, it climbed to number 9, making it his fourth top ten single.

Jumpers for Goalposts: Live at Wembley Stadium: Jumpers for Goalposts: Live at Wembley Stadium is a home video by English singer-songwriter Ed Sheeran, released on Blu-ray on 13 November 2015.  It features the footage taken from Sheeran's x Tour, when he became the first solo artist to take the stage at Wembley Stadium in London and played across three sold out nights to a crowd of 240,000 people.  "Jumpers for Goalposts: Live at Wembley Stadium" features performances of hits like "The A Team", "Sing" or "Thinking Out Loud".  Sir Elton John duets with Sheeran on two songs.  Aside from the live performances, "Jumpers for Goalposts: Live at Wembley Stadium" gives viewers an insight into life backstage on the road with Sheeran.  Simultaneously, "Jumpers for Goalposts: Live at Wembley Stadium" was released on DVD as part of the re-release of Sheeran's 2014 "x" album.  This CD/DVD combo titled "x (Wembley Edition)" also includes five new tracks on the CD portion.

All of the Stars: "All of the Stars" is a song by English singer-songwriter Ed Sheeran.  It is featured over the credits in the 2014 film "The Fault in Our Stars" and is the first track of the soundtrack album, "The Fault in Our Stars (Music from the Motion Picture)".  It is also a bonus track on the physical deluxe edition of Sheeran's second studio album "x" (2014).

Sing (Ed Sheeran song): "Sing" is a song by English singer-songwriter, Ed Sheeran.  It was written by Sheeran and Pharrell Williams, who also produced it and provided uncredited background vocals.  The song was released on 7 April 2014, serving as the lead single from Sheeran's second studio album, "×" (2014).  The song became Sheeran's first UK number-one single and also topped the charts in Australia, New Zealand and Ireland.  It also peaked at No. 13 on the US "Billboard" Hot 100.

Supporting paragraphs: X (Ed Sheeran album) Don't (Ed Sheeran song)
Answer: Don't