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Celebrities celebrated International Women's Day on social media on Sunday, March 8 using hashtags like #InternationalWomensDay, #NoCeilings and #NotThere. Madonna, Pink, Shakira and Ariana Grande were among those who showed their support on Twitter.

Madonna reposted a quote from Hilary Clinton along with caption, "Repost! Thank you Hilary Clinton! Happy International Womens Day! #rebelheart." Pink shared a photo of her and her daugher along with caption, " 'The question isn't who's going to let me; it's who is going to stop me.' - Ayn Rand. Happy International Women's Day."

Repost! Thank you Hilary Clinton! Happy International Womens Day! �� #rebelheart pic.twitter.com/pPBCrK4fon

— Madonna (@Madonna) March 8, 2015

�The question isn�t who�s going to let me; it�s who is going to stop me.� - Ayn Rand. Happy International Women's Day pic.twitter.com/DWQ3wlGoVY

— P!nk (@Pink) March 8, 2015

Shakira wrote, "On Intl Women's day I want to highlight the power of education as a catalyst to transform the lives of millions of girls around the world." Ariana, meanwhile, tweeted, "Happy Women's Day! Here's to the women who build each other up and encourage each other to be themselves as opposed to tear each other down & here's to the women who don't shame each other, to the women who celebrate each other and let people be themselves w/o judgement or hate. luv to all women today!!!!!!!!!!(AND EVERYDAY)."

Lupita Nyong'o, Cameron Diaz, Chrissy Teigen and Karlie Kloss, meanwhile, changed their profile pictures on Instagram into the same Not-There campaign photo. Karlie added a photo of her Kate Spade billboards without her there.

For International Women�s Day, I am taking a stand for gender equality and I'm joining others to be #NotThere. #IWD2015 Visit: Not-There.org

A photo posted by Lupita Nyong'o (@lupitanyongo) on Mar 8, 2015 at 11:36am PDT

We're Not There...Yet. Inequality exists at work / at home / at the doctor's office / at school - and yet these issues do not get the attention they deserve. It's almost like we're NOT THERE at all. �Today is International Women's Day and I am taking part in a campaign that literally removes women from the media. �You too can participate. Spread the word by changing your profile on Instagram, Facebook, Twitter, etc. and visit OurBodyBook.com @thebodybook for more information. #notthereyet #notthereaction #internationalwomensday @clintonfoundation

A photo posted by Cameron Diaz (@camerondiaz) on Mar 8, 2015 at 9:31am PDT

https://not-there.org

A photo posted by @chrissyteigen on Mar 8, 2015 at 9:24am PDT

I�m proud to support the @ClintonFoundation�s #NoCeilings campaign to inspire and advance the full participation of women and girls around the world. My photo is missing from Instagram and a @KateSpadeNY billboards today encouraging us to ask the question, �What happens when women and girls are #NotThere?� On #InternationalWomensDay, make sure to celebrate all the women in your life who ARE! Learn more at Not-There.org.

A photo posted by @karliekloss on Mar 8, 2015 at 1:23pm PDT

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Other celebrities like Kerry Washington, Victoria Beckham a.k.a. Victoria Adams, Kourtney Kardashian and Cara Delevingne also showed their support for International Women's Day.

Kerry wrote on Twitter, "HAPPY #InternationalWomensDay. How are celebrating today?! #MakeItHappen #PaintItPurple #WomensDay." Victoria shared some photos of her at an AIDS clinic, writing, "We must stand up for Women's rights, education and health. Join me to make change happen. #IWD2015."

We must stand up for Women's rights, education and health. Join me to make change happen. #IWD2015 pic.twitter.com/xaUcn92N2L

— Victoria Beckham (@victoriabeckham) March 8, 2015

Ending gender based violence is essential to ending AIDS by 2030. Learn more @UNAIDS #IWD2015 pic.twitter.com/axGrKEw4Bg

— Victoria Beckham (@victoriabeckham) March 8, 2015

Gender inequality, poverty, violence and cultural practice contribute to women's vulnerability with HIV #IWD2015 pic.twitter.com/qZKq1HQMCU

— Victoria Beckham (@victoriabeckham) March 8, 2015

I am surrounded by strong women every day. I am so inspired by my strong, smart sisters, mother and grandmother all day long. Most importantly, teach your children (girls and boys) about what today means and lead by example. #internationalwomensday #teachyourboys

A photo posted by Kourtney Kardashian (@kourtneykardash) on Mar 8, 2015 at 9:20am PDT

Each of them empower me daily just by watching them be who they are. �#internationalwomensday #teachyourchildren

A photo posted by Kourtney Kardashian (@kourtneykardash) on Mar 8, 2015 at 4:52pm PDT

Happy #internationalwomensday

A photo posted by Cara Delevingne (@caradelevingne) on Mar 8, 2015 at 8:45am PDT