"Sasha Fierce is my alter ego, this other side of me that's almost animalistic and strong and fearless, and I have used this person to take over when I'm too scared or too shy," Beyonce told Allure magazine.
"The thing that's interesting is I don't need Sasha Fierce anymore, because I've grown, and I'm now able to merge the two," Beyonce continued. "I want people to see me. I want people to see who I am."
Normally when people have alter egos they're committed to asylums (or given Golden Globe awards), but it seems to be the done thing in music circles. Janet Jackson had Damita Jo, Mariah Carey had Mimi, and Britney Spears had Crazy Britney Spears.