NEW YORK, NY - JUNE 08: Beyonce Knowles leaves Kayne West's birthday party at Miss Lily's on June 8, 2013 in New York City.
HOUSTON, TX - FEBRUARY 16: Beyonce attends The Two Kings Dinner presented by Sprite at RDG + Bar Annie on February 16, 2013 in Houston, Texas.
NEW YORK, NY - FEBRUARY 12: Beyonce Knowles attends "Beyonce: Life Is But A Dream" New York Premiere at Ziegfeld Theater on February 12, 2013 in New York City.
LOS ANGELES, CA - FEBRUARY 10: Beyonce arrives at the The 55th Annual GRAMMY Awards on February 10, 2013 in Los Angeles, California.
NEW YORK, NY - MAY 06: Beyonce Knowles attends the Costume Institute Gala for the "PUNK: Chaos to Couture" exhibition at the Metropolitan Museum of Art on May 6, 2013 in New York City.
Beyonce Knowles at the 2011 Billboard Music Awards Pressroom, MGM Grand, Las Vegas, NV
on May 22, 2011.
Beyonce surprises students at PS/MS 161 in Harlem as part of First Lady Michelle Obama's "Let's Move" initiative to fight childhood obesity. The students were dancing to "Move Your Body," which the singer recorded for the initiative. Middle School students from around the country were participating in the four-minute flash dance routine simultaneously 1:42 pm EST on May 3, 2011 in New York City.
Beyonce Knowles is sighted during a fashion photoshoot at Hotel Ritz on April 22, 2011 in Paris, France.
NEW YORK, NY - MAY 02: Beyonce attends the "Alexander McQueen: Savage Beauty" Costume Institute Gala at The Metropolitan Museum of Art on May 2, 2011 in New York City.
NEW YORK - NOVEMBER 21: Singer Beyonce Knowles attends a screening of "I AM...World Tour" at the School of Visual Arts Theater on November 21, 2010 in New York City.
LOS ANGELES, CA - FEBRUARY 13: Singer/actress Beyonce Knowles attends The 53rd Annual GRAMMY Awards held at Staples Center on February 13, 2011 in Los Angeles, California.
NEW YORK - NOVEMBER 22: Actress and singer Beyonce Knowles hosts the launch of Lorraine Schwartz's "2BHAPPY" jewelry collection at Lavo NYC on November 22, 2010 in New York City.
MIAMI BEACH, FL - OCTOBER 20: Beyonce sighting on October 20, 2010 in Miami Beach, Florida.
LAS VEGAS, NV - DECEMBER 31: Singer Beyonce Knowles attends The Cosmopolitan Grand Opening and New Year's Eve Celebration with Jay-Z and Coldplay at Marquee Nightclub in The Cosmopolitan on December 31, 2010 in Las Vegas, Nevada.
LONDON, ENGLAND - JANUARY 22: In this handout photo provided by MTV, Beyonce Knowles attends the Hope For Haiti Now concert, a global benefit for earthquake relief, at The Hospital Club on January 22, 2010 in London, England.