Which Beyoncé alter ego was associated with the 2008 album I Am... Sasha Fierce?

The Beyoncé alter ego associated with the 2008 album I Am... Sasha Fierce was Sasha Fierce.

Beyoncé introduced Sasha Fierce as a stage persona representing a more confident, bold, and performance-focused side of her artistic identity. The 2008 album was structured as a double album: I Am... presented more personal and reflective material, while Sasha Fierce emphasized energetic pop and dance songs.

The album included “If I Were a Boy,” “Single Ladies (Put a Ring on It),” “Halo,” and “Diva.” Its two-disc format made the contrast between the personas part of the album’s concept, even though both sides were released under Beyoncé’s name.

Sasha Fierce was not a separate singer or a film character. Beyoncé later said she had retired the persona, explaining that the character had served its purpose. “Yoncé” is another nickname or persona-related name associated with Beyoncé, but it is not the answer to this album’s central alter-ego question.