Singer Sam Smith developed "breasts" in his adolescence, was the victim of bullying because of his shape and underwent liposuction surgery at the age of 12.

The 26-year old singer told Jameela Jamil, who has launched the I Weigh Body Positivity movement that he had suffered "his whole life" because of body image.

"When I was a kid, five or six, I was chubby and then it would get worse and worse and worse and I was holding a lot of weight in my chest and then when I hit 11 years old I went to the doctors," the singer said.

"I was holding a lot of oestrogen in my chest," Smith revealed in the I Weigh Interviews series on IGTV.

He said that he felt so self-conscious that it was affecting his mood every day. "I had breasts. I had liposuction, I was 12 years old…. At the time I was very happy about it."

"I think I put the weight back on in two weeks as I hadn’t really figured out my relationship with food," he admitted.

Smith also made the startling declaration that if he could choose a career path again, he would not opt to be famous. The singer said that "no-one treats (you) the same ever" (after fame.)