“Unfaithful” is a song by the Barbadian singer Rihanna. It was released in 2006 as the second single from her second studio album “A Girl Like Me”. The song was written by Shaffer “Ne-Yo” Smith and Mikkel S. Eriksen and produced by the Norwegian duo Stargate.

“Unfaithful” deals with the subject of infidelity and the emotional consequences of infidelity or betrayal in a relationship. The texts convey the guilt and remorse of a person who has cheated on their partner. The song received positive reviews for its powerful vocals and emotional depth. “Unfaithful” did well in the international charts and reached the top ten in many countries. It became one of Rihanna’s early hits and contributed to her growing success in the music industry. The accompanying music video also attracted attention with its dramatic narrative, which complemented the theme of the song.