Panic! At The Disco is an American rock band formed in 2004 in Las Vegas, Nevada. Originally a pop-punk group, they gained fame with their debut album, A Fever You Can't Sweat Out, which featured the hit single "I Write Sins Not Tragedies." Over the years, the band's style evolved, incorporating elements of pop, electronic, and baroque pop. The band's lineup changed frequently, with Brendon Urie being the sole constant member. Panic! At The Disco is known for their theatrical performances and distinctive sound, releasing several successful albums, including Death of a Bachelor and Pray for the Wicked.