According to the song's official credits, this features a certain Brad Paisley. The singer explained why to Billboard magazine: "I don't know if somebody has had featuring themselves on a record. I sample a piece of (2004 Paisley single) 'Mud on the Tires' in the song so that to me is funny that I'm featuring myself. And believe it or not, we still had to get clearance and it took a few weeks to do."
Paisley explained his use of the sample to Rolling Stone Country: "In the middle of this bro-country movement, with all this criticism about [the genre's reliance on] the jean shorts and the mud and the outdoors, we do a song that's just like that… but we include a sample of myself from 2003! Which is kind of like saying, 'I have a little license. I kinda did this already.' But it's written so tongue-in-cheek, and it doesn't take itself too seriously."
"What's Up" by 4 Non Blondes has endured as one of the most popular songs of the '90s, but it wasn't a huge hit at the time and the band split after one album. Frontwoman Linda Perry went on to write hits for Pink and Christina Aguilera.