What was the title of Beyoncé’s 2008 album that used the alter ego Sasha Fierce?

Beyoncé’s 2008 album that used the alter ego Sasha Fierce was titled I Am... Sasha Fierce.

Released on November 12, 2008, the album was structured as a double album. The “I Am...” disc emphasized more intimate ballads and personal performances, while the “Sasha Fierce” disc presented a more assertive, performance-centered persona.

The project included “If I Were a Boy,” “Single Ladies (Put a Ring on It),” “Halo,” and “Diva.” “Single Ladies” became one of Beyoncé’s signature songs, helped by its stark black-and-white video and widely imitated dance choreography.

Beyoncé later said that Sasha Fierce represented a stage persona she used during performances, although she eventually retired the alter ego. The album is sometimes shortened informally to Sasha Fierce, but its official title includes both “I Am...” and “Sasha Fierce.”