St. Jude

It's the fifth time she's run the half-marathon in Nashville.

"Giving back is something that's very important to me," he says.

"It's almost like I'm scared of that thought," he says.

The singer's family has been supporting St. Jude Children's Research Hospital for as long as she can remember.

They're trained to help St. Jude kids.

They all had baby faces and we're not talking about the kids at St. Jude.

His voice gets quiet when he talks about St. Jude, but it's not out of sorrow.

Become a partner in hope.

For Bentley it's an inspirational place.

"It is your responsibility as a human being, as a citizen of the country world, to give back."