The royal wedding was cause for a particularly special celebration for the Willoughby clan - it coincided with two birthdays.
Holly Willoughby shared a shot to Instagram of a royal wedding party that was also celebrating her sister's 40th and her mother's 70th.
The shot shows Holly standing under a balloon arch with her mother and sister - all of them wearing wedding dresses and holding Union Jacks.
The caption read "So it’s the Royal wedding, my sisters 40th and my mums 70th birthday party at the willoughby residence today!!!! ... I blame you @ladywilloughby for the dress code!!!! #whynot #happiness #love 💙🥂❤💙🍾❤🎂💙"
Holly's fans rushed to comment on the picture, complimenting the trio - in particular pointing out how young Holly's mother, Linda, looks.
So it’s the Royal wedding, my sisters 40th and my mums 70th birthday party at the willoughby residence today!
"Your mums never 70," one fan commented.
"WHAT !!! 70 ???? No way !! 😍👍," said another.
"your mum is no way 70!!! That woman in the middle is not a day over 50! 🙊," another comment said.
Holly posted a touching birthday tribute to her sister, Kelly, last week - sharing a collection of pictures to Instagram, with the caption "Nothing but pure love for this one today and always... my sister... love you... beyond! @ladywilloughby happy 40th birthday 🎂 🍾🥂✨"
Holly is quick to celebrate her family on Instagram - on International Women's Day in March, she posted a picture of herself as a baby, flanked by Linda and Kelly.
The caption read "Happy International Women’s Day to these two power house women in my life... my mother and my sister... love you both! 💕 #internationalwomensday"
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It's not the first time Holly's youthful mum has drawn attention - Holly posted a birthday shot of her last year that had fans insisting her mum looked much younger.
Can't wait for next year, when everyone gets to be surprised all over again!
Do you believe her mum's 70? Leave us a comment on our Facebook page @EntertainmentDailyFix and let us know what you think!