UNIVERSAL CITY, CA - JULY 22: Singer Justin Bieber and rapper Big Sean attend the 2012 Teen Choice Awards at Gibson Amphithea
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Justin Bieber is all set to drop his new collection Journals, which combines all his "Music Monday" tracks with five new songs, but as a special treat, the singer unveiled the Diplo-produced "Memphis" with Big Sean before the album's release.

The slow-burning R&B/hip-hop track finds Bieber continuing his grown and sexy lothario phase, as Big Sean drops a verse over Diplo's ominous beat.

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Journals is set to drop Sunday evening, but will only be available on iTunes until January 2, at which point only the individual tracks will be available to purchase.

Those who have been buying each Music Monday track as it comes out will have the option to "complete my journal," a function similar to "complete my album" that allows fans to buy only the tracks they don't have for a cheaper price than the planned $13.99.

Listen to "Memphis" now