"Hard" is a song by Barbadian recording artist Rihanna from her fourth studio album, Rated R (2009). The song was written by Terius Nash, Christopher Stewart, Rihanna, and Jeezy, with vocals performed by the latter two. Nash and Stewart produced it under their stage names, The-Dream and Tricky Stewart. "Hard" was sent to radio by Def Jam Recordings on November 10, 2009, as the second United States single from Rated R. It is a hip hop song and features military horns, hissing synthesizers, sharp beats and piano chords.