The pair have teamed up for 'Beauty And A Beat' for Bieber's third studio album Believe, which is out in the UK on June 18 and a day later in the US.
The leak follows the official release of Bieber's latest promotional single 'As Long As You Love Me', which features Big Sean.
The star has also teamed up with Drake and Ludacris for his new collection, which serves as the follow-up to his debut album My World 2.0.
Bieber's North American tour dates sold out in one hour following their release earlier this month. He has yet to announce the European leg of his Believe world tour.
Listen to Justin Bieber and Nicki Minaj's 'Beauty And A Beat' below: