Which R&B diva went on tour in 2009 as "Sasha Fierce"?

Which R&B diva went on tour in 2009 as "Sasha Fierce"? Beyoncé is the answer. Sasha Fierce was Beyoncé's confident, fearless stage persona, introduced as an alter ego and central concept of her 2008 double album, I Am... Sasha Fierce.

The album's supporting concert tour, officially called the I Am... Tour, began in March 2009 and ran into 2010. Its performances emphasized the contrast between Beyoncé's quieter personal identity and Sasha Fierce's more aggressive, glamorous performance character. The show included elaborate costumes, choreography, video interludes, and a large all-female backing band.

Sasha Fierce was not a separate singer or touring musician; it was a persona adopted by Beyoncé during performances. She later said the alter ego helped her separate her private self from the confidence and intensity required onstage. The tour supported songs from all three of her then-current solo albums as well as a Destiny's Child medley, linking her solo career to her earlier group success.