High Quality Content by WIKIPEDIA articles! "Only Girl (In the World)" is a song by Barbadian recording artist Rihanna from her fifth studio album, Loud (2010). The song was released as the album`s lead single on September 10, 2010 through Def Jam. It was written by Crystal Johnson, Norwegian production duo Stargate and Sandy Vee, and produced by Stargate and Vee. Musically, "Only Girl" is an up-tempo dance-pop song which incorporates elements of Europop. The song became the first to be completed for the album, and Rihanna chose it for inclusion before she recorded it.