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.