VIDEO : Chris Brown Releases NSFW ?Back to Sleep? Remix Featuring Zayn Malik and Usher

Chris Brown has premiered the remix of his single, ?Back to Sleep,? on Soundcloud and it features former One Direction singer, Zayn Malik, and Usher. The single is from Brown?s most recent album, Royalty, and features lyrics that are definitely not safe for work. Both guest singers Usher and Zayn get some considerable air time on the track and plenty of opportunities to get down and dirty in the lyrics. As for Brown, he gives his ex-girlfriend, Karrueche Tran, a shout-out, something he didn?t do in the original version of the tune.