The actress posted on Instagram this photo of her with her and husband Justin Timberlake's son, saying, "Happy Mother's Day to you, Mom. I only, just now, understand what you did for me. And to all moms everywhere, I'm having a champagne in your honor. And when I say champagne I mean seltzer water cause mama's gotta do carpool in the am. #momlife."
The pregnant supermodel posted this pic on Instagram and gave a shout-out to fellow pregnant Victoria's Secret Angel Behati Prinsloo, writing, "Happy Mother's Day to all the amazing mothers in my life and happy almost mama's day to us @behatiprinsloo. So much love already."
"Happy Mother's Day, Mom," the actor wrote on Instagram. "You gave birth to me an excruciating 468 weeks late. I was 9. We were both so happy to be free."
The glamour model shared this collage of pics of her with her and Tyga's 3-year-old son.
"Three generations. Grammy. Me and Frank's. @cocokopelman #happymothersday #iheartgrammy," the actress wrote.
Kylie posted on Instagram this photo of the sisters wearing KISS parody shirts that pay tribute to mom Kris Jenner.
"To the most selfless person I know," Khloe wrote on Instagram. "Mom, the words 'I love you' are not adequate enough to express how grateful I am to be your daughter, how much you are appreciated or how much you will always mean to me, so I will simply say: Thank you mom for being my superhero, my inspiration, my miss fix it, my problem solver, my expert-in-everything, and most importantly my very best friend."
"Asked my mom to text me one of her fav pics of us and I get this," The Rock wrote on Instagram. "Thanks mom I was hoping for a pic where I'm less dork and not needing a puberty bra. Ah what the hell, it's funny. Happy Mother's Day Mom!"
The Vinyl actress posted this photo of her and Jason Sudeikis' son during a supermarket trip.
Nicky posted this photo from her wedding day, saying, "Happy Mother's Day mom. You are amazing and I'm so proud to be your daughter."
The supermodel and TV host posted this three generations photo, saying, "I'm hearing, 'Happy Mother's Day' and I can't believe how lucky I am! Of all the fashionable hats I wear, I love being a #mother the most. #HappyMothersDay from me and my mama to all the wonderful women of the world!"
Donald Trump's daughter posted this throwback photo of her and her mom on her Instagram page, saying, "Happy #MothersDay to my amazing mom. You've taught me so much—you truly lead by example. I hope one day my children look up to me as much as I look up to you."
The TV host and model's husband shared this sweet photo on Instagram, saying, ""To my wonderful wife, @chrissyteigen. Luna and I are so lucky to have you in our lives. If our daughter can be even half as awesome as you, I will be so happy and proud. Happy 1st Mother's Day!"
Kevin posted this photo of his wife and daughter, saying, "Happy Mother's Day to you baby! Me and Alena and ? Love you." He and Danielle revealed in April two weeks before Mother's Day 2016 they are expecting baby No. 2.
The singer's husband, NHL star Mike Fisher, posted on his Instagram page a photo of his wife with their son Isaiah and his mother. He wrote, "Very blessed to have these 2 strong, beautiful and Godly Moms in my life! #happymothersday."
Madonna appears with her children in photos posted on her Instagram page. "Most Inspiring and Challenging adventure of my life!" she wrote. "Happy Mothers Day to all who are riding this roller coaster of L♥O♥V♥E!"
The Buffy alum and Cruel Intentions star shared this sweet throwback photo, saying, "#happymothersday This picture is three #generations. Thank you to my #mom for teaching me everything she knew and encouraging me to learn more."
The reality star shared a sweet throwback pic of her and ex Scott Disick's three children on Mother's Day 2016, writing, "Feeling overwhelmed with love and blessings being able to be a mommy to these three angel babies. My favorite role in life so far is being a mommy and getting to see life through their eyes. Happy Mother's Day!"