Sam Smith has revealed he had liposuction surgery at the age of 12.

The chart-topping singer, 26, said he developed “breasts” in his adolescence and was bullied over his shape.

He told Jameela Jamil, who launched the I Weigh body positivity movement, he had struggled with his body “his whole life”.

“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,” he said.

“And then when I hit 11 years old I went to the doctors,” the Stay With Me singer said.

“I was so self-conscious that it was affecting my mood every day and my life as a teenager.

“I was holding a lot of oestrogen in my chest,” he said in the I Weigh Interviews series on IGTV.

“I had breasts. I had liposuction, I was 12 years old…. That was a big thing. At the time I was very happy about it.”

He added: “I think I put the weight back on in two weeks as I hadn’t really figured out my relationship with food.”

Smith, who stopped wearing boys clothes for a time, aged 16, and donned make-up, said his chest was the “basis” of all the “teasing my whole life”.

He added that if he could choose his life again, he would not be famous, saying “no-one treats (you) the same ever”.