Between the 2017 Sundance Film Festival and the Women's March on Washington, there was no shortage of notable celebrity activity on social media this week (Is there ever?).
Katy Perry, Jessica Chastain, Chloe Grace Moretz and Derek Blasberg were just a handful of the celebrities that stepped out to participate in the Women's March on Washington, while Chelsea Handler organized the March on Main at Sundance in Park City, Utah and Nicole Richie marched on Los Angeles.
Elsewhere, Britney Spears shared an adorable photo of one of her sons all grown-up, as well as a couple of hilarious Snapchat videos she posted on Instagram, while Kendall Jenner and Bella Hadid jetted off to Paris for Paris Fashion Week.
Also on our list of favorite Instagrams this week were Joe Jonas, Ashley Graham, Jennifer Lopez and more.
Check out the best celebrity Instagrams of the week: