Rob Hoffman/Invision for Parkwood Entertainment/AP
01/13/2014 AT 08:00 PM EST
Girls may run the world, but Beyoncé
is making it known that they don't have the paychecks to show for it.
The singer has written an essay for The Shriver Report, a media initiative led by journalist and former California first lady Maria Shriver, that aims to document and discuss societal trends that impact women.
"We need to stop buying into the myth about gender equality. It isn't a reality yet," she writes in "Gender Equality Is a Myth!" from the 2014 special report entitled, "A Woman's Nation Pushes Back From The Brink," which can be downloaded for free until Jan. 15 through the group's website
"Today, women make up half of the U.S. workforce, but the average working woman earns only 77 percent of what the average working man makes," she writes, under the name Beyoncé Knowles-Carter. "But unless women and men both say this is unacceptable, things will not change."
The singer then writes a call to action suggesting that men join their wives, daughters, mothers and sisters in demanding equal pay for equal work.
And the pop diva isn't the only celebrity who participated in the project. Eva Longoria
contributed an essay called "Empowering Latinas," which encourages educational opportunities for Latina women.
writes "Turning Poverty Around: Training Parents to Help Their Kids" and Jada Pinkett Smith
penned the essay "Human Trafficking and Slavery in the United States: 'You Don't See the Chains.'"
Even Miami Heat star LeBron James
wrote a piece called "America's Working Single Mothers: An Appreciation."
The celebrity essays appear alongside works by experts in the field, such as Barbara Ehrenreich, as well as public figures Hillary Rodham Clinton, Idaho Governor C.L. Otter, Senator Kirsten Gillibrand and Ft. Worth Mayor Betsy Price.