B’Day is the Beyoncé album titled after the singer’s birthday month and day.
The title is a stylized combination of the letter B and “Day,” referring to Beyoncé’s birthday on September 4. Her second solo studio album was released on September 4, 2006, the day she turned 25.
B’Day followed Dangerously in Love and was recorded in a notably compressed period after Beyoncé was cast in Dreamgirls. Its songs include “Déjà Vu,” “Irreplaceable,” and “Beautiful Liar,” the latter a collaboration with Shakira. The album debuted at number one on the Billboard 200.
The punctuation and capitalization are part of the album’s commonly used styling: B’Day. It is easy to confuse the title with the ordinary phrase “birthday,” but the name specifically uses Beyoncé’s initial and her personal birth date.