The image above and more photos from the event are from Brad Schmitt's Flickr page.
Here is a video from YouTube, taken from backstage, of Dierks singing Beautiful World with the Africa Children's Choir and Free and Easy:
Additionally, Dierks recorded a yet to be named song in the Ocean Way Studio with the children, according to theboot.com.
"I think it was the first time they'd ever been in a studio like Ocean Way," Dierks told The Boot. "We did a song that I've been holding onto for awhile, waiting for the right time to record it. I'm not really working on my next album yet but I'm thinking about it, and I had to get these kids in the studio while they were here."