"Megalomaniac" is a song by the American rock band Incubus, from their 2004 album A Crow Left of the Murder...
It was released as a single in December 2003, and eventually reached the top of Billboard's Modern Rock Tracks, where it stayed for a six-week period.
The song begins with a cyclic, scratchy warble that lasts about 30 seconds (not present in the radio edit) before fading into a more conventional introduction.
The entire buildup lasts about one minute in all before climaxing into a heavy rock riff, with distorted electric guitars and bass, before going into the first verse.
The gas pump spurts oil over the crowd, while the main figure's head is consumed by a bald eagle and starts eating people that turned into fish.