Celebs celebrate Mother's Day on social media

Beyoncé and Blue Ivy Look Like Twins in Mother's Day Throwback Post

It's Mother's Day, and it seems like all the stars are celebrating!

Here's a roundup of the maternal celebrations happening today.

NEWS: Stars Post Adorable Throwback Pics of Their Moms

Reese Witherspoon, who hosted SNL last night, posted a photo of her and her mom:

Rihanna honored her mother with a photo:

Jeremy Renner posted a photo of himself with fellow Avenger Scarlett Johansson with a Mother's Day message (she welcomed her first child, daughter Rose Dorothy, last year):

Happy FIRST Mother's Day to you! What a beautiful blessing for you and your girl #sweetscarlet #mothersdayhttp://www.whosay.com/l/bHpaxwj

Posted by Jeremy Renner on Saturday, May 9, 2015

"Happy FIRST Mother's Day to you!" Renner wrote. "What a beautiful blessing for you and your girl."

Elizabeth Banks tweeted a pic of herself and her mom:
Heidi Klum is celebrating in Germany with her own mother:

Wishing everyone a beautiful Mothers Day Weekend . Mannheim, Germany 2015󾠨󾀽󾀼󾁁󾁆󾁀󾁍󾁅󾠨

Posted by Heidi Klum on Saturday, May 9, 2015

Gabourey Sidibe wished a Happy Mother's Day to "all mothers but especially mine who is the best!"
Rob Lowe posted a message to his wife, Sheryl, who's mom to his two sons Matthew and John:
Beyonce posted a side-by-side photo of her mom, Tina Knowles with a baby Bey, next to one of grown-up Beyonce today with her own baby, Blue Ivy. Blue Ivy looks just like her mom did as a kid!

Sending love to Mothers around the world.

A photo posted by Beyoncé (@beyonce) on

Hugh Jackman showed us where he gets his smile from:

Happy Mother's Day to my Mum!!!! And to all yours too.

A photo posted by Hugh Jackman (@thehughjackman) on

Dwayne "The Rock" Johnson shared a beautiful, emotional story about his mother, ending with the tale with, "And Happy Mother's Day to my amazing mom who will no doubt kill me for posting this crying pic."

Cool Mother's Day story.. early am flight and I'm sittin' across from my mom when out of the blue she looks around the plane, then looks at me and says "Son, I can't believe the life I have.. grandma and grandpa would be so proud." I asked her, "Are you happy ma?". Just then the flight attendant placed my moms breakfast down on the table and my mom said to me, "Am I happy?.. I used to worry about how I was going to buy groceries for us and now I just had my breakfast placed down in front of me". She bursts into tears and says "Yes, son I couldn't be happier". This is the woman who when I was 14yrs old we were evicted out of our apartment in Hawaii 'cause we couldn't afford the $180 per week rent. At this moment Im shaking my head and smiling quietly (as my mom blows her nose;) 'cause she just told me she's happy. And y'all know when our parents tell us they're happy, its so satisfying for us, 'cause it means we've done a good job for them as their kids. Happy Mother's Day to all the deserving amazing mamas out there. And Happy Mother's Day to my amazing mom who will no doubt kill me for posting this crying pic. #EnjoyBreakfastMom #GratefulTears #TryNotCryInTheEggs

A photo posted by therock (@therock) on

Nicki Minaj also wrote about her relationship with her mom:

"Happy Mother's Day Mommy. Love u. Thank u. For everything you did," she captioned the photo. "Everything you said. The times I can't hear or see you but I know you're watching. The times u told me not to give up. Hope I make u proud mama. Love you forever. - Onika" Watch Sharon and Kelly Osbourne discuss why they're best friends with one another:

Sharon & Kelly Osbourne Reveal What Makes Them 'Best Friends'
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