Stewart, Robyn Fenty Production – Christopher "Tricky Stewart, Terius "The-Dream" Nash Vocal production – Makeba Riddick Engineering – Marcus Tovar, Brian "B-LUV" Thomas, Andrew Wuepper, Chris "TEK" O'Ryan Additional engineering – Pat Thrall Assistant engineering – Luis Navarro, AJ Clark, Jason Sherwood, Steven Dennis Mixing – Jaycen Joshua Assistant mixing – Giancarlo Lino Guitar – Tim Stewart Additional keys – Monte Neuble Credits adapted from the inlay cover of Rated R. Charts Weekly charts Year-end charts Certifications Release history References External links 2009 songs 2010 singles Rihanna songs Grunge songs Hip hop songs Music videos directed by Melina Matsoukas Songs written by Tricky Stewart Songs written by The-Dream Songs written by Rihanna Song recordings produced by Tricky Stewart Def Jam Recordings singles Black-and-white music videos Song recordings produced by The-Dream Slash (musician) songs