Irreplaceable

"Irreplaceable" is a song written by American singer-songwriters Ne-Yo and Beyonce, and Norwegian songwriters Mikkel S. Eriksen, Tor Erik Hermansen, Espen Lind, and Amund Bjørklund for Knowles' second studio album B’Day. Produced by Norwegian production team Stargate and Beyoncé, the song was released as the album's third single domestically, and the second single outside North America in October 2006. "Irreplaceable" reached number one on the Billboard Hot 100 on December 16, 2006, making it Beyoncé's eighth Billboard number-one, and her fourth as a solo artist (her first without a guest rapper). It has sold over two million copies in digital sales. It was the last U.S. #1 of 2006 and the first of 2007.

"Irreplaceable" was the Billboard Hot 100 number-one single for ten weeks, and has received world wide critical acclaim. In the United States, it has become the most successful song of her solo career. In December of 2006, a Spanish-language version of "Irreplaceable" entitled "Irreemplazable" (which means "Irreplaceable") was released. This remix has peaked on #4 on Billboard's Hot Latin Songs. It has also been faring fairly well on charts in Latin countries and will be included in her Spanish language re-release of B'Day. In the UK the song was used, along with Beyonce, in TV commercials for the Samsung Ultra Music SGH-F300 cell-phone. The song will be featured on her newest CD Irreemplazable.