Jessie J says she’s “been working hard this year” and that “it’s important to know when you need to gain weight, or when you need to lose weight and be healthy.”
The 23-year-old is known for her slim figure and skin tight outfits.
She released her debut CD Who We Are earlier this year. It’s double platinum in the United Kingdom, where she has four Top 10 hits, including the No. 1 tune “Price Tag.” That song has reached the Top 40 in America.
The singer also plans to shave her head for charity.
Says Jessie J: “I want to make a difference in the world.”