B'Day is the title of Beyoncé's 2006 studio album that includes “Irreplaceable.”
B'Day was Beyoncé's second solo studio album and was released on September 4, 2006, her 25th birthday. The title is a wordplay on both “birthday” and the conventional abbreviation for Beyoncé's name.
The album includes “Déjà Vu,” featuring Jay-Z, “Ring the Alarm,” and “Irreplaceable.” “Irreplaceable” became one of Beyoncé's biggest singles, spending ten weeks at number one on the US Billboard Hot 100 and becoming especially known for its repeated “to the left” refrain.
B'Day followed Dangerously in Love and preceded I Am... Sasha Fierce. The album was reissued internationally as a deluxe edition with additional songs, including Spanish-language material, which can make track listings differ between editions.