Anna Nicole Smith's daughter Dannielynn Birkhead looks all grown up now

Dannielynn Birkhead is getting so big!

The adorable 10-year-old stepped out with her father, Larry Birkhead, for the 143rd annual Kentucky Derby on Saturday and the daughter of the late Anna Nicole Smith is looking all grown up.

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Wearing a pretty white party dress with massive floral embellishments -- as well as a matching headpiece -- Dannielynn looked super cute as she adorably posed with her father on the red carpet at Churchill Downs.

Larry matched his daughter in an off-white suit with pink accents, as well as tinted sunglasses.

Their father-daughter outing marked the seventh consecutive year that they've attended The Greatest Two Minutes in Sports -- and there's a reason why. As Birkhead revealed on Twitter this weekend, he actually met the late mother of Dannielynn at the Derby back in 2003.

"Dannielynn b4 she raided the dessert room at the Barnstable-Brown Party where I met her Mom in 2003 #lifefullcircle#BarnstableBrownParty," he tweeted on Saturday along with another picture with his daughter.

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