What is Beyoncé’s stage alter ego introduced with her 2008 double album?

Beyoncé’s stage alter ego introduced with her 2008 double album is Sasha Fierce.

The name appeared in the title of I Am... Sasha Fierce, Beyoncé’s third studio album, released in November 2008. The album was structured as two discs: “I Am...” presented more personal ballads, while “Sasha Fierce” emphasized more assertive and performance-oriented material.

Beyoncé explained that Sasha Fierce represented a confident onstage persona distinct from her everyday self. The idea helped frame songs such as “Single Ladies (Put a Ring on It),” whose choreography and visual presentation became especially influential.

The alter ego is often confused with informal labels such as “Queen B,” but those nicknames are not the album’s official persona. Beyoncé later said she had moved beyond Sasha Fierce, describing herself as more comfortable combining the personal and stage sides of her identity.