What stage persona did Beyoncé use prominently during her early solo career?

Beyoncé used the stage persona Sasha Fierce prominently during her early solo career.

Sasha Fierce was presented as Beyoncé’s more confident, sensual, and performance-focused alter ego. Beyoncé discussed the persona as a way to separate her private self from the commanding character she inhabited onstage.

The name became especially associated with the 2008 double album I Am... Sasha Fierce. The album’s two discs contrasted introspective songs, described as representing Beyoncé herself, with more energetic and assertive tracks associated with Sasha Fierce.

The project included major singles such as “If I Were a Boy,” “Single Ladies (Put a Ring on It),” and “Halo.” Beyoncé later said she no longer needed to rely on the alter ego because she had integrated that confidence into her own identity. Sasha Fierce is therefore a specific persona, not Beyoncé’s legal name, a group name, or a general nickname used for every period of her career.