Purpose is the fourth studio album by Canadian singer Justin Bieber. It was released through Def Jam Recordings and School Boy Records on November 13, 2015, as a follow-up to his third studio album Believe (2012). The album features guest appearances from Big Sean, Travis Scott, Halsey, Jack Ü, and Ariana Grande. The deluxe version was released simultaneously on the same day. It features an extra guest appearance from Nas. Production was handled by Bieber and Jack Ü themselves, BloodPop, Benny Blanco, the Audibles, Soundz, Mike Dean, Ian Kirkpatrick, and Andre Harris, among others.

In early 2015, Bieber collaborated with Skrillex and Diplo on the US top-ten single, "Where Are Ü Now", from their debut studio album as Jack Ü, Skrillex and Diplo Present Jack Ü; the song also appears on Purpose. Bieber then found what would be the record's sonic direction and worked with Skrillex on a handful of the album's songs. Purpose was described as a mix of EDM and dance-pop, with influences of tropical house in some tracks and live instruments such as acoustic guitars in some others, with the help of his friend and frequent musical collaborator, Poo Bear.

Purpose debuted at number one on the US Billboard 200, earning 649,000 album-equivalent units in its first week of release, giving Bieber the largest first-week sales of his career and his sixth number-one album in the United States. Elsewhere, it reached the top of the charts in another eleven countries. The album was supported by four singles: "What Do You Mean?", "Sorry", "Love Yourself", and "Company". The former three singles all reached number one on the Canadian Hot 100, US Billboard Hot 100 and the UK Singles Chart. The album was among the best-selling albums of both 2015 and 2016. Purpose is a pop, R&B, soul, and EDM album. The album was developed after the release of his compilation album, Journals (2013), which saw him move musically in a more R&B direction.

Purpose was nominated for Album of the Year and Best Pop Vocal Album at the 2017 Grammy Awards. "Love Yourself" was nominated for Song of the Year and Best Pop Solo Performance. The album won the American Music Award for Favorite Pop/Rock Album. To promote the album, Bieber gave several televised interviews and performances, as well as releasing "dance videos" for all of the album's tracks in a project called Purpose: The Movement. Furthermore, Bieber embarked on his Purpose World Tour in 2016, which was his first concert tour to perform in major stadiums worldwide. The album has since been certified 6× platinum by the Recording Industry Association of America (RIAA).