"Irreplaceable" is a song by American R&B singer Beyoncé Knowles. The song was written by Beyoncé, Ne-Yo, Tor Erik Hermansen, Mikkel S. Eriksen, Espen Lin, Amund Bjørklund, and co-produced by Stargate and Beyoncé for her second solo album, B'Day (2006). Originally not created for her, Beyoncé re-arranged the demo presented by the producers—a country-turned-R&B-pop song. The lyrics refer to breaking up with an unfaithful man, part of Beyoncé and Ne-Yo's vision of creating a record that people could relate to, and was considered an anthem to female empowerment.