The 2018 Women's March kicked off this weekend on the anniversary of Donald Trump's first year as president. Not only did women show up with the boldest signs and slogans, but celebrities also lent their voice to the cause. "Today we march #timesup," Amy Schumer wrote on Instagram. Adele, who took to the streets with her BFF Jennifer Lawrence and Cameron Diaz, also shared a heartfelt message about raising her son to be a "good man" to people regardless of their gender. Lupita Nyong'o, Natalie Portman, and Drew Barrymore were also in attendance at some of the many marches happening across the country. Keep reading to see how other stars showed their support.