John-Scott is a product of the emergent Texas film scene of the late 90s and early 2000s that launched the likes of Richard Linklater, Matthew McConaughey, Robert Rodriguez, the Wilson Brothers, Renee Zellweger, and Wes Anderson. While studying screenwriting at the University of Texas film school, he became active in the local film scene, working at Linklater's Austin Film Society and the first two Alamo Drafthouse Cinemas. He was also active in front of the camera, where a handful of national commercials and roles in 'Fast Food Nation' and 'The Lying Game' eventually paved a pathway to Los Angeles.
A Jack-of-All-Trades, John-Scott has been a consistent presence since 2012 in television, film, print, and music as well. Following in the footsteps of other balladeers / actors such as Kris Kristofferson and Harry Connick Jr., Horton brings an easy manner and southern charm to his work, making him a compelling romantic lead or weekend troubadour.
Was an FFA Creed Speaking champion which entailed delivering the creed of the Future Farmers of America to cowboys at regional Cattleman's Association banquets.
Worked on his first film set as a stand-in for Josh Hartnet and Clive Owen on the set of Robert Rodriguez's "Sin City", happily watching Mickey Rourke's (Marv's) 3 dogs when not needed on set.