Michelle Obama, Lady Gaga, Ellen DeGeneres and Others Mark International Women's Day

 International Women's Day
International Women's Day in London on March 8, 2020 TOLGA AKMEN/AFP

Michelle Obama, Lady Gaga and Hillary Clinton were among some of the notable figures who acknowledged International Women's Day on social media.

International Women's Day is celebrated each year on March 8, a tradition that is over 100 years old. The date has become an occasion to honor the achievements of women around the world while also pushing forward to fight against inequality and poor representation.

On Sunday, celebrities worldwide took to social media to commemorate International Women's Day. Some elected to speak on the issues in their respective industries, while others celebrated the women that inspire them.

One reaction comes from singer Shakira, who complimented Michelle Obama and activist Malala Yousafzai, two women who became examples for girls around the world. Shakira stressed the importance of fighting against child marriage and education for women worldwide.

In her tweet, former first lady Obama wrote: This #InternationalWomensDay, let's work together to empower the next generation of women.

Comedian Ellen DeGeneres shared a Twitter post celebrating multiple women who came on as a guest on her TV talk show. Greta Thunberg, Elizabeth Warren, Margot Robbie, Demi Lovato, and Charlize Theron all joined DeGeneres' program, showcasing her work in giving women a platform to speak on larger issues.

Former Secretary of State Hilary Clinton commented on International Women's Day with a call for the advancement in women's rights. She emphasized that no political party or administration can change that "women's rights are human rights."

California Senator Kamala Harris recalled what her mother used to say: "You may be the first to do many things, but make sure you are not the last." Harris further commented on the sacrifices women made throughout history who fought for the rights of women to have "equality and representation."

Lady Gaga celebrated women in music on International Women's Day. The singer-songwriter shared a playlist of songs from female artists from around the world. The playlist, filled with 31 different tracks, is available on Apple Music to listen.

Actresses Scarlett Johansson and Florence Pugh, stars of the next Marvel Studios movie Black Widow, filmed a short video for International Women's Day. The pair spoke on all the female heroines Marvel Studios put on screen over the last 10 years. Black Widow is set to be the second female-led superhero film for the studio after 2019's Captain Marvel.