S&M" is a song by Barbadian singer Rihanna from her fifth studio album, Loud (2010). The song was released on January 21, 2011, as the fourth single from the album. The 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-Electro-pop track with lyrics about sexual intercourse, sadomasochism, bondage, and fetishes.
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