St. Jude

Oh, and did we mention she did it while wearing a dinosaur onesie?

It's a tradition that began on what have been Arianna's ninth birthday.

The goal is to defeat childhood cancer.

One patient in particular had a special impact on him.

Moments like this were plentiful on this night.

It was inspired by "just listening and hearing these kids and the fight they have and the success that they do have."

They're trained to help St. Jude kids.

"St. Jude is just a special place," he says.

Lady Antebellum recall their first visit to St. Jude Children's Research Hospital, early on in their career.

The St. Jude Children's Research Hospital patients Dillon Carmichael has met will always stick with him.