A rapper has ripped off the flesh on his face to give himself a 'demon smile' - and claims many women say it's sexy, not scary.
Renato de Santa has implants under his skin to give him horns, has dyed black eyeballs, and a bifurcated split tongue.
He also has the number 666 carved into his head but has just got his most extreme body modification yet.
The 41-year-old, from São Paulo, Brazil, has now had chunks of his flesh peeled back between the corners of his mouth and ears.
The transformation, known as a Glasgow smile, was created in the same way as his earlier 666 scar - at the sharp end of a blade.
He traces his fascination with self-transformation back to 1996 and says he has absolutely no regrets.
"The scarification is done with a scalpel and the skin is removed in the desired shape," he said.
"The healing is done with a relief on the skin accentuating the shape. The scarification of the 666 left me with a lot of pain in the head when I went to take a shower and the warm water fell. It took about 40 minutes to
make.
"My new scarification is inspired by the Japanese legend of Kuchisake-onna - the woman with the cut mouth."
In Japanese folklore, Kuchisake-onna is a malevolent spirit whose mouth is cut from ear to ear.
She's said to ask her victims if they think she is beautiful - killing them if they say no, and cutting them to look like her if they say yes.
But Renato's look is not meant to be scary - in fact, he says, it's sexy for some.
He said: "Some women have fetishes for my changes and are full of admiration, but there are also women who have some kind of aversion.
"There's still a lot of prejudice even in the tattoo world, and people with commercial or trendy tattoos sometimes get scared by my changes, but that's no problem for me."
How people react can depend on age too.
"The kids like it a lot and see me as a superhero," he said. "They ask how the implants were made and also my eyes.
"The elderly show more resistance in accepting my changes because they are from another time and used to other customs."
In total, he estimates he's spend around $10,000 – £7,270 – on transforming his appearance.
Coming from such a religious country, however, his efforts are not always appreciated.
"Sometimes I get offensive messages on the internet," he said. "They are usually Christians saying that I'm going to hell and promoting hate speech. In fact, it doesn't bother me anymore.
"The 666 is a protest against the church and the system that obliges everyone to convert to Christianity in some way.
"I feel good looking 'like a demon', as haters say. "I want to show that the world is not just for Christians but for everyone who lives here regardless of beliefs, colour, race and sex."
