Beyoncé Giselle Knowles (born September 4, 1981),[1] commonly known as Beyoncé (pronounced /biːˈan.sei/), is an American R&B singer-songwriter, record producer, and actress. Born and raised in Houston, Texas, she enrolled in various performing arts schools, and was first exposed to singing and dancing competitions as a child. Knowles rose to fame in the late 1990s as the lead singer of girl group Destiny's Child, the best-selling girl group of all time.

Knowles recorded with various artist for "Just Stand Up!", a charity single for the "Stand Up To Cancer" charity. This charity aims to raise funds for cancer research through the acts and offerings of the celebrity world. Joining Knowles on this charity single was Mariah Carey, Natasha Bedingfield, Leona Lewis, Rihanna, Leann Rimes and Mary J. Blige. The song was brought to public attention recently when it was performed live by most of the stars at Fashion Rocks 2008 in New York City—this show was broadcast simultaneously on all major American networks on September 5, 2008.

Celebrities News : Beyonce would like to be known as "Sasha Fierce"??
She may have one of the most recognizable names in the industry, but R&B star Beyonce would like to be known by a jazzy new name for her upcoming double album.
Following in the footsteps of other famous entertainers known by their alter egos — Eminem (Slim Shady), Prince (The Artist Formerly Known As …) and Garth Brooks (Chris Gaines) —Beyonce has christened herself “Sasha Fierce.” The album, aptly titled “I Am … Sasha Fierce,” is due in stores on November 18, Reuters reported.
For years, Beyonce has explained how Fierce would take over as she performed on stage. But with the new album, she is taking it a few steps further, creating a MySpace page for Sasha and explaining the bizarre name change in a statement.

Additionally, she has set up a cryptic MySpace page (http://www.myspace.com/sashafierce) that gives a "lucky person" the opportunity to receive a personal message and a gift bag valued at $500.
As George found out, nicknames usually do not work when they are self-bestowed. His colleagues thought he should be called Koko the monkey. In real life, rapper Eminem had better luck with his alter ego "Slim Shady," which he said came to him while he was on the toilet.
Beyonce released her previous solo album, "B'Day," to coincide with her 25th birthday in September 2006. It debuted at No. 1 on the U.S. pop chart and yielded the No. 1 single "Irreplaceable."
"Sasha Fierce is the fun, more sensual, more aggressive, more outspoken side and more glamorous side that comes out when I'm working and when I'm on the stage," the statement from the former Destiny’s Child front-woman reads.
"I have someone else that takes over when it's time for me to work and when I'm on stage, this alter ego that I've created that kind of protects me and who I really am."