Jay Sean has revealed that he has struggled with his weight ever since childhood.
The "Where You Are" singer admitted that he now sticks to a strict diet.
The 29-year-old told The Times: "[I was] a very, very fat kid. I was 14 stone when I left school. I challenged myself. I used to look at pictures in magazines and go, 'I wish I had a body like that'.
"And I said to myself, 'One day I will look like that. I will get that body'. And I worked my arse off to get it. I lost three stone over the summer, people didn't recognize me."
Sean also maintained he will never stray from his routine of healthy eating, for fear that he will start to put on weight again.