"Only Girl (In the World)" is a song performed by Barbadian recording artist Rihanna. It is taken from her fifth studio album, Loud. It was written by Crystal Johnson, Mikkel S. Eriksen and Tor Erik Hermansen from the Norwegian production team Stargate and Sandy Vee. The latter two also handled production. The song was released from September 10, 2010. It was the lead single from Loud. Critics have praised the song. They praised the strong chorus and musical production. Critics also complimented the choice of song and strength of Rihanna's voice.