"S&M" is a song by the Barbadian singer Rihanna from her fifth studio album, Loud (2010). The song was released on January 23, 2011, as the fourth single from the album. American songwriter Ester Dean wrote "S&M" in collaboration with the producers Stargate and Sandy Vee. Backed by bass beats, a keyboard and guitars, it is an uptempo Hi-NRG and...