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/ Source: TODAY
By Erin Clements

David Beckham isn't shy about showing his devotion to daughter Harper.

Last year, the doting dad paid tribute to his youngest child with a tattoo on the back of his neck that reads "pretty lady" and features a small heart. And more recently, the soccer star could be seen diligently sewing dresses for his little girl's dolls.

So when Harper turned 5 Sunday, Beckham took to Instagram with an adorable message for the birthday girl.

"In 5 years baby Harper has brought so much love into our family," he wrote beside a black-and-white photo of Harper planting a kiss on her father's cheek. "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."

Shortly after, mom Victoria shared an equally affectionate tribute, writing, "We all love you so much" alongside a sweet photo of the mother-daughter pair.

David has admitted that he holds sons Brooklyn (17), Romeo (13) and Cruz (11) to a different standard of strictness than Harper.

RELATED: David Beckham says he's stricter with sons, has 'no power' with daughter Harper

"I have no power with that little girl — no power whatsoever," he told Entertainment Tonight in 2015.

"I love all my children, of course, equally," he added. "But I'm definitely stricter with the boys than I am Harper, which gets me in trouble with my wife of course."

Happy 5th birthday, Harper!