Castle on the Hill

The theme of the song surrounds Sheeran's home town of Framlingham, and he reminisces tales of 'smoking hand-rolled cigarettes' and getting 'drunk [with] friends' at this place, living life as a teenager. The castle mentioned in the song is Framlingham Castle, and in January 2017, Sheeran was invited to perform at the Castle.

The song was written and recorded in 2015. Sheeran revealed that despite a similarity to the music of U2, the direct influence of the song came from "Fallen Empires" by Snow Patrol, a band he had toured with. He said: "I grew up on Snow Patrol, I didn't grow up on U2, but I know that Snow Patrol grew up on U2, so I know [where] that influence had come [from]." He also said he wanted to make a song like "The River" by Bruce Springsteen, a song with similar reflective element.

Jon Caramanica from The New York Times said, "'Castle on the Hill' has U2 influenced nervous guitar builds and wistful, largely generic lyrics about the people who shaped him." Billboard's Taylor Weatherby wrote about the song saying, "'Castle on the Hill' has a Train like vibe with a fast-paced, yet powerful melody that builds to an epic chorus that's just as Sheeran as all of his past singles. Needless to say, Sheeran is telling the world he's back in compelling fashion." Jeremy Gordon of Spin gave the song a positive review, stating that the song "sort of sounds like late period Coldplay, big, broad stroke music for arenas and Wembley performances. There's a lyric about driving down a country road while listening to Elton John's 'Tiny Dancer,' because Ed Sheeran saw Almost Famous once." Adam Starkey from news website Metro states that it "'has echoes of Mumford & Sons with the kind of climbing drums and soaring chorus sure to win over festival crowds, recalling how far he's come from 'smoking hand-rolled cigarettes' and 'running from the law in the backfields'."

"Castle on the Hill" debuted at number two on the UK Singles Chart on 13 January, selling 193,000 combined units in its first week. Sheeran also debuted at number one with "Shape of You", making him the only artist in UK chart history to debut in the top two positions in the same week. The song was certified silver in the first week due to selling 200,000 units. The song remained at number two in its second week, selling 100,000 units. The song spent a further three weeks at number two, and spent fourteen weeks in the top ten altogether. As of September 2017, the song has sold 1.7 million combined units in the UK, 479,000 of these are actual sales, with 119 million streams. On the Scottish Singles Chart, "Castle on the Hill" debuted at number one, ahead of "Shape of You".

The song debuted at number six on the Billboard Hot 100, selling 171,000 downloads and gaining 13 million streams in its debut week in the US. Sheeran also became the first artist to debut two songs in the top 10 in the same week in the history of the Hot 100, with "Shape of You" also debuting at number one. As of September 2017, "Castle on the Hill" has sold 821,000 downloads in the US.

"Castle on the Hill" was accompanied by a lyric video on 5 January 2017 with "Shape of You" upon its release. By March 2018, it had amassed over 300 million views on YouTube.

The official music video for the song was released on 23 January 2017. It was directed by George Belfield and produced by Tom Gardner, and it features a group of adolescents living their youth with parallels being made to Sheeran's own youth. The video was filmed throughout Suffolk with locations including Framlingham, Boyton marshes, Mildenhall Stadium and Felixstowe. The final shot shows Framlingham Castle. Ed Sheeran stated on The Graham Norton Show that the young man playing him in the video went to the same school as Sheeran, Thomas Mills High School.

The song was used in trailers and several TV spots for the 2017 animated film Ferdinand.^{[citation needed]}

The song is also used in the first trailer and a few TV spots for the 2019 animated film How to Train Your Dragon: The Hidden World.^{[better source needed]}

• Digital download

1. "Castle on the Hill" – 4:21

• Digital download – Acoustic

1. "Castle on the Hill" (Acoustic) – 3:46

• Digital download – Live at the BRITs

1. "Castle on the Hill " (Live at the BRITs) – 1:47

• German CD single

1. "Castle on the Hill" – 4:21
2. "Castle on the Hill" (Acoustic) – 3:46

• Digital download – Seeb remix

1. "Castle on the Hill" (Seeb remix) – 3:51

• Digital download – Throttle remix

1. "Castle on the Hill" (Throttle remix) – 3:40

• Digital download – NWYR remix

1. "Castle on the Hill" (NWYR remix) – 3:33

Personnel are taken from the Europe digital single liner notes.

• Ed Sheeran – lead and backing vocals, guitar, mandolin
• Pino Palladino – bass
• Leo Taylor – drums
• Benny Blanco – keyboards
• Thomas Barlett – keyboards, piano

• Lists of Scottish number-one singles of 2017