Panic! at the Disco is a Grammy-nominated rock band formed in Las Vegas, Nevada. The band comprises Brendon Urie (vocals) and Spencer Smith (drums). In July 2009, both Ryan Ross (guitar, vocals, songwriter) and Jon Walker (bass) left the band citing creative differences as the reason for their depature.[2]

Panic! at the Disco's debut album, A Fever You Can't Sweat Out, reached #13 on the US Billboard 200, and has sold over 2.2 million copies worldwide[3] since its September 2005 release. The band's second album, Pretty. Odd., was released on March 25, 2008 and debuted at #2 in the US.