What stage persona did Beyoncé use before retiring the character around 2010?

Beyoncé used the stage persona Sasha Fierce before retiring the character around 2010.

Sasha Fierce was introduced prominently with Beyoncé’s third studio album, I Am... Sasha Fierce, released in 2008. The album used a two-disc concept: the “I Am...” disc presented more personal ballads, while the “Sasha Fierce” disc emphasized energetic, performance-oriented songs.

Beyoncé described Sasha Fierce as an alter ego that helped her access confidence and theatrical intensity while performing. The persona was associated with songs such as “Single Ladies (Put a Ring on It)” and “Diva,” although Beyoncé’s public image and stage identity continued to evolve beyond the concept.

In 2010, Beyoncé said that she had killed or retired Sasha Fierce because she no longer needed an alter ego to perform. Sasha Fierce is distinct from informal nicknames such as Queen Bey and Yoncé, which are not the same named persona.