Panic at the Disco formed in 2004 when its founders were still in high school. Disenchanted with the live music scene there, they moved cross-country from Las Vegas and began their career in earnest in College Park, Maryland. Mentored by Fall Out Boy, they quickly lost enthusiasm for the experimental sound they favored early on and came up with a contemporary version of the classic rock sound they love, incorporating influences they heard on records by the Beatles, The Kinks, and the Beach Boys. They eventually started selling records and headlining tours. You can find one of their music t-shirts at Rocker Tee Shirts. Think of it as future music memorabilia.