This is the opening track from Barbadian singer Rihanna's fourth studio album, Rated R.
The song is one of three on the album that was produced by British production duo, Chase & Status, the other two being "Wait Your Turn" and "G4L." Rihanna told The Daily Telegraph November 18, 2009: "From when I first heard Chase & Status, I had to work with them. These two guys are magic. They make the grungiest, most amazing beats ever."