"These 2 angels... The greatest gift I've ever known. And, the reason I won't EVER STOP!" the singer's wife Jessica Biel wrote. 'Happy Fathers Day to all the Dads out there! Hope you are enjoying! #Howearlyistooearlyforafathersdaybeer."
The Victoria's Secret model posted this photo of her husband and daughter, writing, "Happy first Father's Day, you are EVERYTHING to us. I'm so proud of the kind of dad and husband you are. I can't do life without you!!! Luckiest girls alive."
The Olympic swimming champion posted this pic of him and his son, writing, "I have the BEST dad ever!! I Love being able to sit and hang with him!!Even if it's when I'm beating him in some games!! #lookdadiwin #happyfathersday."
"Today is my first Father's Day.." he wrote alongside a video of him and his boy. "I made a promise on OCT 23 The birth of my SON @asahdkhaled that everyday every second every breath is my SONS DAY!! I LOVE YOU @asahdkhaled THANK YOU! #EveryDayAsahdDay! #GRATEFUL."
The singer's wife posted the photo and wrote, "I took this photo right after John won his Tony a couple weeks ago. In all our time together (11ish years!!?!?) I cannot believe how much he has grown as a man and a husband. To see him go from big goals to big ideas to big wins and the love of so many makes me so so happy. 10 years ago, I didn't think he could get better, then I got to see him as a father. I don't know how or why Luna, my family and I got so lucky in this life but I will stop questioning and just be grateful. I love you so much, John. Happy Father's Day."
Kim Kardashian posted this throwback photo of her husband and their eldest child.
Victoria Beckham posted this photo of her family, writing, "The best daddy in the world!!! We all love u so,so much X kisses from us all x."
The rapper posted this photo of himself with daughter California, one of his three kids.
"Some people live their entire life without knowing their purpose....." he wrote. "I knew mine as soon as my 1st child was brought into this world."
The singer posted on Instagram this pic of Moroccan and Monroe, writing, "Happy father's day daddy, we love you!! - Rocky & RoeRoe @nickcannon#HappyFathersDay."
The singer and mother of two posted this throwback video on Instagram, writing, "Since Day 1, you have always been there with open arms! You have always given your all! I'm so grateful for the Man and Father you are to our family. You are truly The Best Dad In The World. We love you soooo much! #HappyFathersDay @DangeRussWilson."
The Oscar-winning star of Moonlight shared a sweet pic of himself with daughter Bari.
The Olympic swimming champion and fiancée Kayla Rae Reid posted this photo of him with their first child, son Caiden Zane, on Father's Day 2017.
Gisele posted this photo of the couple with children Vivian and Benjamin, writing, "here is nothing better than being with you. We miss you and love you so much! Happy Father's day!!"
The Walking Dead star paid tribute to her beau David Boyd with a sweet pic of their first child, who she revealed is a girl.
Kensington Palace shared a photo of a young Prince Charles with sons Prince William and Prince Harry, seen on a 1996 royal Christmas card, and a more current pic of William with his son Prince George, 3, from their family's trip to Canada in 2016.