News Emma Watson, Britney Spears and More Stars Celebrate International Women's Day -- See the Pics! By Jennifer Drysdale 2:16 PM PST, March 8, 2017 This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. 27:53Kendall Jenner, Bella Hadid and More Speak Out on International …02:26Nikki Bella and Artem Chigvintsev on Their Paris Wedding and Not…05:00Pedro Pascal and Bella Ramsey on Fan Expectations and Zaddies in…02:52Prince Harry’s ‘Spare’ Revelations: William and Kate Watched Meg…03:43Brandi Glanville Weighs In on Lisa Rinna’s ‘RHOBH’ Exit and More…02:08'NCIS' Stars Vanessa Lachey, LL Cool J, Chris O'Donnell and More…02:19Colin Farrell on Wanting More Scenes in 'The Batman' and Getting…01:58Elle King Spills on Her New Album and If She Plans to Have More …03:40TLC's Chilli and Matthew Lawrence Dating After His Split From Ch…02:25Ken Block, Racecar Driver and DC Shoes Co-Founder, Dead at 55 Af…04:49Sherri Shepherd Recalls Barbara Walters Fighting to Cast Her on …03:04Skip Bayless Emotionally Speaks Out Following Damar Hamlin Comme…02:32Angela Bassett's Son Shares an Apology After Michael B. Jordan T…02:43Damar Hamlin: Medical Expert Gives Insight Into Athlete’s Condit…02:00'Varsity Blues' Mastermind Rick Singer Sentenced to 3.5 Years in…02:11Khloé Kardashian Shuts Down Accusations She Does Weight-Loss Inj…03:26'80 For Brady’: Behind the Scenes With Jane Fonda, Tom Brady and…02:34Jeremy Renner Takes His First Shower in a Week Amid ICU Hospital…03:43Kim Kardashian and North West Dance to Taylor Swift, Sing About … The women of Hollywood are joining together to celebrate International Women's Day! From Emma Watson and Britney Spears, to Madonna and Serena Williams, women everywhere are spreading girl power on social media. RELATED: Katy Perry Celebrates International Women's Day With Powerful Message: Now Is the Time We 'Lift Each Other Up'Watson, dressed in a red outfit in support of women, took to Twitter on Wednesday to reveal that she would be handing out feminist books. "Today I'm a red-striking ninja book-fairy out to spread some wise women's words @the_bookfairies #IWDOurSharedShelf #IWD #adaywithoutawoman," the Beauty and the Beast star wrote.Today I'm a red-striking ninja book-fairy out to spread some wise women's words @the_bookfairies#IWDOurSharedShelf#IWD#adaywithoutawomanpic.twitter.com/sOBhrHremg— Emma Watson (@EmmaWatson) March 8, 2017 RELATED: Emma Watson 'Quietly Stunned' by Photo Shoot Feminism ControversySpears, meanwhile, paid tribute to the "fierce" women who inspire her, as Williams and Madonna shared their own posts in support of International Women's Day. View this post on InstagramA post shared by River Red (@britneyspears)View this post on InstagramA post shared by Serena Williams (@serenawilliams)See more posts below: View this post on InstagramA post shared by Eva Longoria Baston (@evalongoria)View this post on InstagramA post shared by Vin Diesel (@vindiesel)View this post on InstagramA post shared by Lana Parrilla (@lanaparrilla)View this post on InstagramA post shared by Adele (@adele) Thank u to all of the strong women who fought & continue to fight for change. #InternationalWomensDay— Kim Kardashian (@KimKardashian) March 8, 2017Because we ALL deserve to be lifted up! Today, let’s celebrate the strong, incredible, GOOD women in our lives. #InternationalWomensDay— Khloé (@khloekardashian) March 8, 2017women rule!— Kendall (@KendallJenner) March 8, 2017 View this post on InstagramA post shared by Bella 🦋 (@bellahadid)Happy #InternationalWomensDayor, as it's often called on here, #WhyIsn'tThereAnInternationalMensDay (There is: November 19th)— J.K. Rowling (@jk_rowling) March 8, 2017I am strong, I am invincible, I am woman 🎶 Happy #InternationalWomensDay to all you female badasses!— Katie Couric (@katiecouric) March 8, 2017 View this post on InstagramA post shared by Karlie Kloss (@karliekloss)View this post on InstagramA post shared by Gordon Ramsay (@gordongram)View this post on InstagramA post shared by Sophia Bush Hughes (@sophiabush)Women! Rise up! Change your profile picture in solidarity. #ADayWithoutAWomanpic.twitter.com/uMfYJfkM5x— Alyssa Milano (@Alyssa_Milano) March 8, 2017 A favorite quote of mine by Maya Angelou for #InternationalWomensDaypic.twitter.com/dofSNtdAzi— Sabrina Carpenter (@SabrinaAnnLynn) March 8, 2017View this post on InstagramA post shared by Krysten Ritter (@therealkrystenritter) WATCH: Meghan Markle Shares Inspiring Message on International Women's Day: 'To Always Knowing Your Worth'Meghan Markle Shares Inspiring International Women's Day Message: 'To Always Knowing Your Worth' This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page.