Panic! at the Disco is an American alternative rock duo (due to a recent break-up), formed in Las Vegas, Nevada in 2005. Odd., released in 2008.
Since its split, the band's line-up includes Brendon Urie (lead vocals, guitar, piano), and Spencer Smith (drums). Former members Ryan Ross (guitar) and Jon Walker (bass) left the group in 2009. Ian Crawford and Dallon Weekes are also associated with the band while touring in 2011. The band has been described by critics as a variety of genres, most commonly pop punk, alternative rock, and baroque
pop. The band formed and recorded their first demos while they were all still in high school. Shortly after, the band recorded and released their debut, A Fever You Can't Sweat Out (2005). Made known by the lead single "I Write Sins, Not Tragedies", the album eventually was certified double platinum and met with much success. The group then wrote and recorded their second record, Pretty. Marked as a drastic change in tone from their debut, it oversold commercial expectations but met with critical success. The band released their third album, entitled Vices & Virtues, on March 22, 2011,[2] while the record's first single, "The Ballad of Mona Lisa", was released February 1, 2011.[3]