What is Beyoncé’s alter ego introduced around her 2003 solo debut?

Beyoncé’s alter ego introduced around her 2003 solo debut was Sasha Fierce.

Beyoncé described Sasha Fierce as a stage persona that helped her perform with confidence and intensity. The name became especially prominent with her 2008 double album, I Am... Sasha Fierce, whose two discs contrasted reflective songs with more assertive, performance-driven material.

The persona is often confused with Beyoncé’s public nickname “Queen Bey,” but they are not the same label. “Sasha Fierce” referred specifically to an alter ego connected to performance, while “Queen Bey” became a broader fan and media nickname. Beyoncé later said she had moved beyond the alter ego, explaining that Sasha Fierce had served its purpose during an earlier phase of her career.