Panic! at the Disco was an American pop rock band formed in Las Vegas, Nevada, in 2004 by high school friends Ryan Ross (guitar, vocals) and Spencer Smith (drums), who recruited classmates Brendon Urie (vocals, guitar) and Brent Wilson (bass). Following several lineup changes, Panic! at the Disco operated as the solo project of frontman Urie from 2015 until its discontinuation in 2023. The band recorded their first demos while they were in high school. Shortly after, they recorded and released their debut studio album, A Fever You Can't Sweat Out (2005).