Without doubt the title goes to our abundant reptilian neighbours, the Flat Headed Rock Agama! 
With the kind of colouration any self respecting punk rocker can only dream of maintaining in a hair cut, the male Agama puts the our friends at Camden Lock to shame.
Adding to this he displays by violently thrashing his head up and down to attract the attention of females and send his rivals packing - suitably intimidated by his prowess as a headbanger.
We should post this behaviour on you-tube with Metallica's "Ride the lightning" as a soundtrack.
"That's not music, that's just noise!"