 Rihanna's recording sessions took place at Sun Studios in Dublin, Ireland. Marcos Tovar mixed her vocals, which were engineered by Spike Lindsey and mastered from Detroit over the Internet. The American songwriter Makeba Riddick provided additional vocal production. Strange used equalization, compression and reverberation but left the vocal balance. He assumed that Rihanna was satisfied with her recorded vocals and did not make major changes on her seven stereo vocal tracks.
