B’Day was the 2006 Beyoncé album whose title references her birthday month.
B’Day was released on September 1, 2006, close to Beyoncé’s September 4 birthday. The title combines the letter “B” with “Day,” creating a birthday-themed name while also identifying the project as a Beyoncé album.
The album followed Dangerously in Love and continued her solo development with a more energetic, rhythm-driven sound. Its singles included “Déjà Vu,” featuring Jay-Z, “Irreplaceable,” “Beautiful Liar,” featuring Shakira, and “Get Me Bodied.”
B’Day was connected to Beyoncé’s role as Deena Jones in the 2006 musical film Dreamgirls. She recorded much of the album during a short break from filming. The title is sometimes confused with the plain number “4,” which belongs to her 2011 album, or with her self-titled 2013 visual album.