'Battlefield' singer Jordin Sparks has appeared on the cover of Shape magazine to show off her phenomenal 50lb weight loss.

The 22-year-old beauty posed for the photoshoot in a skimpy purple bikini and opened up about her body issues in an exciting new interview.

"I knew I had a long road ahead of me. I was barely working out, and my diet was a mess. I had to address when, what, and how much I was eating. I just wanted to be healthy. I remember thinking, ‘I’m in my prime. I should be happy and fit.’ That was the moment I decided that changes needed to be made."

Sparks also confessed that after committing to a healthy eating plan and exercise regime she saw fantastic results: "The weight really started falling off, and I could see my muscles. It was awesome."