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!
Hugh Jackman showed us where he gets his smile from:
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."
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: