By Allen Starbury. Chris Brown’s anticipated X album is due out in just over a week, so the singer unveils some of the project’s star power. Via Twitter, Breezy revealed a partial list Thursday morning (July 4) — Rihanna, Nicki Minaj, Kelly Rowland, Wiz Khalifa, and B.o.B. “More surprises to come,” he tweeted. X includes production from Timbaland, Diplo, Polow Da Don, Danja, Pharrell, and Drumma Boy; and is due out July 16th.