Countless celebrities Tweeted, Instagrammed, Vined and Facebooked photos from their Mother's Day celebrations on Sunday, while others posted throwback photos of their moms.
Selena Gomez even used the day to announce her mother's pregnancy, making her a big sister at age 20.
Ryan Seacrest flipped frittatas, Cindy Crawford hit the beach, and a few showed off funny faces.
Check out personal photos from the stars.
Britney Spears' sons showed off funny faces.
"I've got the two cutest boys in the world! Hope y'all are having as nice of a #mothersday as I am!"
Even her dog wished the singer a Happy Mother's Day.
"Awww thanks sweetheart! RT @hannahspears I must confess @britneyspears is the best mommy ever!! Happy Mother's Day!"
Nicole Richie sent well wishes with her signature humor.
"The one day I year I forgive her for this. Happy Mothers Day!"
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