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Six-year-old Leah Still stole America's heart as she publicly battled stage four Neuroblastoma cancer with her father, Houston Texans player Devon Still, by her side. 

Nearly two years since the diagnosis she is now cancer-free, and on Friday, she gave a precious speech at her dad's New York City wedding.

SEE ALSO:Feel-good NFL news alert: Devon Still says daughter Leah beat cancer

Though it was her father’s big day, Leah found herself back in the spotlight after a video of her speech and of her dancing with her father and stepmother went viral.

"The beginning of our future and the end to a hard time."

"We put off the wedding because my daughter was battling cancer. Now that [the wedding] is officially here, it's the beginning of our future and the end to a hard time," the NFL player told People magazine.

Leah served as the flower girl during the wedding ceremony as her father wed longtime fiancée Asha Joyce inside the New York Public Library. She also gave a sweet speech during the reception, caught on camera by actress Holly Robinson Peete.

SEE ALSO:Leah Still challenges Riley Curry to a dance off in the cutest of ways

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“Thank you for everybody supporting me and I love my new family,” Leah said in the clip as the wedding guests cheerfully looked on. “Now let’s party!”

Leah also joined her dad and his bride on the dance floor to get down to Bruno Mars' "Uptown Funk."

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The NFL star also shared his own touching tribute to his little girl with an Instagram picture of the two laughing together.

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"Everyday I'm thankful," he captioned the shot.

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"When I saw [Leah] even before the wedding, I got emotional. We'd been waiting for this moment for a long time," Devon told People.

"To see my daughter walking here at my wedding, healthy, knowing she is cancer-free is a tear-jerker for me."

"This is my first real wedding!" Leah told People. "It's great!"

If you can see past the mascara running down your face, here are some more wonderful shots of Leah and company from the wedding:

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