Oprah Winfrey, Meryl Streep and Ryan Reynolds are among the stars who have signed a letter aimed at global gender equality.

A list of 140 stars have joined forces with the international charity One to add their names to a letter originally published in March to coincide with International Women’s Day.

Aimed at “world leaders”, the letter strives to increase the visibility of “130 million girls without an education” as well as “one billion women without access to a bank account”, “39,000 girls who became child brides today” and “women everywhere paid less than a man for the same work”.

It continues: “There is nowhere on earth where women have the same opportunities as men, but the gender gap is wider for women living in poverty. Poverty is sexist. And we won’t stand by while the poorest women are overlooked.”

The list of celebrities also includes Black Panther stars Chadwick Boseman and Letitia Wright, Tina Fey, Amy Poehler, Bono, Tom Brady, Zendaya, Amy Schumer, Natalie Portman, Thandie Newton, Robin Wright, Juliette Binoche and Issa Rae. The campaign is reportedly hoping to add more names to the list in forthcoming weeks.

“You have the power to deliver historic changes for women this year,” it reads. “From the G7 to the G20; from the African Union to your annual budgets; we will push you for commitments and hold you to account for them. And, if you deliver, we will be the first to champion your progress. We won’t stop until there is justice for women and girls everywhere.”