Dallon Weekes contributed lyrics to every song minus 'Casual Affair' and 'The End of All Things.' Panic! at the Disco had 3 members at the time of the album's recording: Brendon Urie, Dallon Weekes, and Spencer Smith. Urie, Weekes, Butch Walker, Sinclair, Amir
Brendon Urie, Dallon Weekes, Jake Sinclair