A girl at Kibera School for Girls in Kenya shares her message for the campaign Picture: Theirworld/Adriane Ohanesian
Millions of girls and young women across the world face prejudice every day. They don't have equal access to education, opportunity and pay.
But the #RewritingTheCode campaign launched by Theirworld is trying to change the embedded values that hold girls back.
Theirworld - the campaigning charity behind A World at School - asked people to take a stand for International Women’s Day on March 8 and call on the world to start getting serious about #RewritingTheCode.
A host of famous faces joined in by sharing messages on social media - telling their fans and followers what embedded values they would like to change.
Sarah Brown, President of Theirworld, launched the #RewritingTheCode campaign at a special event co-hosted with Facebook in London. Theirworld also launched its innovative Code Clubs for girls in Kenya, Uganda and Senegal.
Sarah said: “With a safe space to learn and play, a mentor to inspire and access to technology to be able to explore, create and code, we can increase learning opportunities and empower girls to fulfil their potential.
"Every girl should have the opportunity to go to school, learn, grow and have a future they choose."
Starting with Sarah, here's a look at some of the #RewritingTheCode campaign messages from stars of TV, film, music and philanthropy.
Co-founder of the Bill and Melinda Gates Foundation
Model, actress and app developer
Model, actress, singer, author
Actress (including TV's Downton Abbey)
Actress (including Harry Potter films)
Actor, writer, director
Director, writer, producer
Founder and Director, Silverfish Media