"Single Ladies (Put a Ring on It)" is a song recorded by American singer and songwriter Beyoncé, from her third studio album, ''I Am... Sasha Fierce'' (2008). Columbia Records released "Single Ladies" as a Single (music)|single on October 8, 2008, as a A-side and B-side|double A-side alongside "If I Were a Boy", showcasing the contrast between Beyoncé and her aggressive onstage alter ego Sasha Fierce. It explores men's unwillingness to Marriage proposal|propose or commit. In the song, the female protagonist is in a club to celebrate her single status.