Harper Beckham is growing up right before our eyes!
David and Victoria Beckham's celebrated the fifth birthday of their only daughter on Sunday, less than one week after their 17th wedding anniversary
. The pair shared sweet messages and even sweeter photos of their baby girl to mark her big day.
Victoria, 42, shared an absolutely precious shot of her and Harper giving each other a smooch while wearing sunglasses in an infinity pool.
"Happy Birthday baby girl ??? We all love you so much ??? X @davidbeckham @brooklynbeckham kisses from mummy X"” the fashion designer captioned the Instagram pic.
David penned a lengthier note to his and Victoria's youngest child alongside a gorgeous black-and-white shot of Harper planting a kiss on her dad's cheek.
"Happy birthday to my Pretty Lady ?," he wrote. "In 5 years baby Harper has brought so much love into our family ... Such a special girl in so many different ways we are so lucky to spend each day with such a beautiful soul ... We adore you baby girl happy birthday love Daddy ❤️ @victoriabeckham."
"I have no power with that little girl -- no power whatsoever," he told ET in September while promoting his H&M Modern Essentials campaign in New York City. "I love all my children, of course, equally but I'm definitely stricter with the boys than I am Harper, which gets me in trouble with my wife of course."
Relive David's birthday message to Harper on her fourth birthday last year in the video below.