Gorgeous Jordin Sparks flaunts her sexy bikini body on the August cover of SHAPE magazine. The 22-year-old songstress sits down for an exclusive interview and opens up about her weight loss, her upcoming film debut in next month’s Sparkle, working with Whitney Houston, and her future plans.

“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,” she says.

The beautiful American Idol winner, who managed to drop 50 pounds, confessed in the interview with Shape that she had a wake-up call at age 21.

Sparks admits that she realized that even though she was young, she was sick and fatigued, had walking pneumonia, and felt rather unhealthy.

“I just wanted to be healthy,” she says. “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.”

It seems that the young songstress tried different weight loss plans but nothing worked. From going vegetarian to more drastic methods such as the Master Cleanse, everything proved to be useless.

Even though it wasn’t easy, Sparks told the magazine that she started slowly by walking around her neighborhood until she felt comfortable enough to try hiking. The next steps were to join a gym and took up Zumba. Besides, she also began to pay a lot of attention to her diet. “The weight really started falling off, and I could see my muscles. It was awesome,” the star confesses.

Now, Sparks admits she feels sexier than ever. Read Jordin’s full interview in the August 2012 issue of SHAPE Magazine.

Jordin Sparks Talks Weight Loss with SHAPE Magazine 2012

Photos: Shape, Jordin Sparks/Twitter