Gabrielle Newton-Bieber, aged 22, who sleeps by a life-sized cardboard cutout of the star, said she changed her name on her 18th birthday – two years after falling for the heart-throb.
The ‘number-one fan’ has five Bieber tattoos and owns every record, DVD, perfume, nail polish and make-up the star has ever put his name to.
She also has a wardrobe full of Bieber clothes, as well as a huge collection of posters and other merchandise.
Gabrielle said: “Justin released first single ‘One Time’ when I was 16-years-old and straight away I was obsessed.
“He was so cute with his floppy hair, riding his skateboard – I fell for him instantly.”
Not content with just buying the single, Gabrielle set about convincing mum Geraldine to let her change her name to Bieber in law.
Gabrielle said: “My mum was like ‘no way’ and told me to wait a few years before changing it.”
But as her 18th birthday approached, the desire to be a Bieber had not faded.
“My mum, bless her, she said she would pay to change my name as a birthday present,” said Gabrielle.
Four years on and Gabrielle definitely does not regret the change – and says her feelings for the star are even stronger now.
The supermarket worker said: “I like him even more now than I did as a teenager. He has got very sexy with age – such great abs.”
Gabrielle, of Worksop, has chosen to go public about her obsession in the hope that Justin will meet-up when he comes to perform at Sheffield Arena in October next year.
She said: “To meet him would mean the world to me – it is my dream.
“I want to thank him for all he has done for the Beliebers.
“He makes us all so happy – Justin Bieber is my world.”