What is the name of Beyonce's alter ego?

What is the name of Beyoncé's alter ego? It is Sasha Fierce. Beyoncé used the persona to describe the more fearless, commanding side of her stage identity, especially during live performances. She explained that Sasha Fierce could take over when she needed to become more daring and powerful in front of an audience.

The name became widely known through her 2008 double album I Am... Sasha Fierce. The album's concept contrasted Beyoncé's private, vulnerable side with the confident performer audiences saw onstage. Its two-disc structure reinforced that contrast: “I Am...” focused on more personal emotions, while “Sasha Fierce” leaned into energetic pop and dance songs.

The alter ego was not a separate person or permanent character. Beyoncé later said that she had become comfortable integrating that confidence into her own identity, rather than treating Sasha Fierce as someone distinct. The persona is therefore best understood as a creative performance device and a way of discussing stage confidence, not as an independent musical act.