Night & Day is the third studio album released by British pop rock band The Vamps, initially released as the Night Edition on July 14, 2017. Cited as a concept album by the band, Night & Day is set to be released in two parts, with the Day Edition set to follow in December 2017. The album was preceded by the release of the singles "All Night" and "Middle of the Night", and includes collaborations with Matoma, Martin Jensen, Mike Perry, Sabrina Carpenter and Joe Don Rooney.

Prior to the album's release, the album's closing track, "Stay", had premiered during the band's 2016 World Tour. To support the album, the band undertook two tours of the United Kingdom. The first, the Middle of the Night Tour, took place in arenas across the country between April and May 2017. During the first show on April 28, the album's title and release date of July 14, 2017 was officially confirmed. During the tour, the band performed "Hands", "Paper Hearts", "Shades On" and "Middle of the Night" live for the first time, as well as premiering a previously unreleased song, "Time is Not on Our Side". A second tour, known as the Night and Day Showcase, took place throughout the first two weeks of July, preceding the album's release. During the show, the band performed all ten songs from the standard edition of the album.

The album debuted at number 1 on the UK Albums Chart, marking the band's first number-one album. The following week, however, it dropped to number 35, the largest drop from number 1 in UK chart history.

On 3 May 2017, the band posted a video on their social media accounts detailing several formats of the album which would be available to pre-order from 5 May. Versions available include a standard digital edition which contains eight tracks; a deluxe digital edition which contains ten tracks plus videos from the Wake Up World Tour: Live at the O2 Arena live DVD; the "Brad Edition", which contains ten tracks plus a DVD of the Wake Up world tour and a poster of Brad; the "James Edition", which contains two exclusive tracks and a poster of James; the "Connor Edition", which contains two exclusive tracks and a poster of Connor; the "Tristan Edition", which contains two exclusive tracks and a poster of Tristan; and a collector's bundle which contains all four versions of the album, all signed by each individual band member, plus a pre-sale code for the band's Night and Day Showcase tour. A vinyl version of the album is scheduled to be released on August 15.

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