A Girl like Me is the second studio album by Barbadian singer Rihanna, who worked with Evan Rogers, Carl Sturken, StarGate, J. R. Rotem and label-mate Ne-Yo, who wrote the album's second single,  "Unfaithful" , written by who?
Unfaithful (song) "Unfaithful" is a song by Barbadian singer Rihanna from her second studio album "A Girl like Me" (2006). It was written by Shaffer "Ne-Yo" Smith with the song's producers StarGate. The song was released by Def Jam Recordings on May 2, 2006, as the second single from the album. "Unfaithful" is a pop and R&B ballad and was inspired by the works of American rock band Evanescence. Originally titled "Murderer", the single speaks about a woman who regrets cheating on her partner.
J. Valentine Johnnie Newt (born July 9, 1979), better known by his stage name J. Valentine, is an American R&B singer, and songwriter. He has written songs for the likes of artists such as Tyrese (“I Like Them Girls”), and the title track to N’Sync’s 9x platinum "Celebrity" album which sold 1.8 million in the first week. Mario’s “How Could You,” and Omarion’s "I'm Tryna" can also be credited to his resume, along with displaying vocals on two posthumous 2Pac albums, Still I Rise and Until The End Of Time.