that American Dad!s humor more frequently derives from "the human condition and emotions that everyone can relate to: ego, the feds, etc. And for that reason, I think our humor is a little more evergreen." Developing plot lines and scripts On developing scripts for American Dad! episodes, co-creator Mike Barker revealed that he and the rest of the show's staff never know when and from where plot line ideas will emerge. "Just as an example," Barker explained, "All About Steve" is an episode where Stan wants his son to be more of a jock and more like he was when he was his age. That whole episode came about from one of our writers Dave Hemingson coming into our office, telling us he just visited the dentist and he may need to get braces. And the idea of a grown man with braces appealed to us, and we just decided what if we put Stan in braces, and he understands for the first time what it's like to feel like a geek." During the 2012–13 season, Barker revealed that much of his inspiration for American Dad! plots came through listening to music. Barker's revelation to use music as a muse for his American Dad! writing came from attending the 2008 Bonnaroo Music & Arts Festival. During that event, he watched the rock band My Morning Jacket perform a four-hour set in the rain and realized from the experience that he could generate ideas for American Dad! by tapping into music: "From that point on, I realized that music should be playing a bigger role in my writing", Barker told the Louisville Courier-Journal. "Writing is hard for me, and when you hear music that inspires good ideas, you're really grateful." The beginning of the show's theme song, "Good Morning USA", uses the introduction to "Stars and Stripes Forever". In particular, Barker has credited music from Wax Fang for his inspiration in writing certain American Dad! plots. Said Barker, "There's just something so inherently cinematic about Wax Fang's music. [Scott] Carney's voice is stunningly clear and dramatic. And his lyrics are specific enough to build stories around while staying flexible enough for different interpretations." Barker added that through listening to the Wax Fang track Majestic, he was able to come up with major plot elements for the episode "Lost in Space" (this episode features the Wax Fang songs Majestic and At Sea).