Who composed the song “Metal at the caput” by Hangover?

The song “Metal at the caput” by Hangover was composed by Guilherme.

Hangover

Guilherme

Headbenger
I am
I am headbenger
Singing out a heavy metal

Headbenger
I am
I am headbenger
Singing out a heavy metal at the blackout of the dark
He may hear that sound
Look the message
In time for scold

Who composed the song “Metal at the caput” by Hangover?: The song “Metal at the caput” by Hangover was composed by Guilherme.