`` I Write Sins Not Tragedies '' is a song by American rock band Panic at the Disco , and is the second single from their debut studio album , `` A Fever You Ca n't Sweat Out '' ( 2005 ) .
`` I Write Sins Not Tragedies '' is the second single by the rock band Panic at the Disco , from their first album `` A Fever You Ca n't Sweat Out '' ( 2005 ) .