Foehner played an instrumental part during the couple's set, when he sang alongside Barrett while playing the acoustic guitar, but he also played his part as her muse for her radio sensation "The Good Ones."
"This song was written about this man beside me," the 20-year-old country star said. "I was just thinking back to when him and I were dating during American Idol at the time. And some of my family members would just ask me, be like, 'Oh, how's your boyfriend doing?' and I'd be like, 'Oh, he's good. He's a good one, he's a keeper.'... Not every single person is bad, not all guys are bad, and I found my good one."