Plastic surgery is an increasingly popular way for people to change their look - and life - with a little nip and tuck. But some take it to the extreme. Here's a look at three people who have gone through great pains to become entirely different.

'Xiahn Nishi', the Brazilian turned Korean

The 25-year-old Brazilian, who goes by the name of "Xiahn", made headlines recently with his stunning transformation into Asian-looking man by altering his eyes, reported the Korea Herald.

Xiahn, who asked not to be named to protect his family from Internet scrutiny, underwent 10 surgical procedures on his eyes, along with other less-invasive procedures, which cost him around US$3,100 (S$3,900). He also began wearing contact lenses to change his eye colour.

Originally blue-eyed with blonde hair, he became interested in having plastic surgery after spending some time as an exchange student in South Korea.

Valeria Lukyanova, the 'real life Barbie'

Reportedly 28 years old, Lukyanova, a Ukrainian, became one of the most famous women on the Russian Internet when she uploaded videos and pictures of herself looking like Barbie two years ago. With silky blonde hair, 38DD breasts, a 19-inch waist and her striking resemblance to the plastic doll, her million fans online just can't get enough of her.

Last year, she was the subject of a documentary film that explored her life and beliefs.

She has also claimed that she has had only breasts implants and that her appearance is a result of "sports massages, healthy living and professional make-up", reports The New Paper. She is adamant that she has never had plastic surgery on her face and that her features are the result of inheriting her mother's "good genes".

She also denied having one of her ribs removed to create her miniscule waist, which she claims she also got from her mum as well as from working out three times a week at the gym.

Justin Jedlica, the 'Ken doll'

Mr Jedlica, an American, shot to fame in 2012 when it emerged that he had spent thousands on body sculpting procedures.

To date, the 33-year-old, who said he had spent $165,000 on plastic surgery to look like his idol, has had 140 procedures done in the last 15 years, including 12 implants in his torso that mimic shapely arm and chest muscles, 15 silicone injections in his buttocks and 11 in his face, reports The New Paper.