"I just wanted to be healthy," Jordin said. "It was just before my 21st birthday. I had walking pneumonia, couldn't breathe and felt totally fatigued. 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."
After she found her motivation, it was time to get to work -- which Sparks admits was was pretty daunting. "I knew I had a long road ahead of me," she revealed. "I was barely working out, and my diet was a mess. I had to address when, what, and how much I was eating."
She started exercising some major portion control and began by walking around her neighborhood until she felt confident enough to take up hiking. Since then, Sparks has started hitting the gym and taking Zumba classes to dance her way slim.
A year and a half later and 50 pounds lighter, Jordin is celebrating just how far she's come. "For me to even be talking about bikini confidence is crazy. If you had asked me a couple of months ago, I probably would have been like, 'What are you talking about?' So it's actually huge for me to even feel OK with putting a bikini on."
Check Out Our Top 10 Reality Show Musicians
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- 10. Susan Boyle
- 9. Javier Colon
- 8. Rachel Crow
- 7. David Archuleta
- 6. Melanie Amaro
- 5. Scotty McCreery
- 4. Jennifer Hudson
- 3. Carrie Underwood
- 2. David Cook
- 1. Kelly Clarkson
- Accident-Prone Pop Stars
- Kelly Osbourne
- Justin Bieber
- Jessie J
- P!nk
- SkyBlu of LMFAO
- Rihanna
- Sean "Diddy" Combs
- Musicians Who Look Like Cartoon Characters
- Taylor Momsen and Kung Fu Panda
- Taylor Swift and a Japanese Anime Character
- Miley Cyrus and a Chipette from Alvin and the Chipmunks
- Nicki Minaj and Rainbow Brite
- Fergie and Janice from the Muppets
- Rihanna and Cleo, the fish from Pinocchio
- Nicole Scherzinger and Jasmine from Aladdin
- Katy Perry's Red Carpet Fashion Through the Years
- Katy at Esquire Magazine's 'The Envelope Please' Oscar Viewing Party
- Katy at Step-Up's Fourth Annual "Fashion Forward
- Katy in Concert in Berlin
- Katy at VH1's 14th Annual Critics' Choice Awards
- Katy at the 2009 Grammy Salute to Industry Icons
- Katy at the 51st Annual Grammy Awards
- Katy at the 51st Annual Grammy Awards Press Room
- Katy on the The 52nd Annual GRAMMY Award's Red Carpet
- Katy at the 2010 EMI Grammy Party
- Katy at the 2010 American Music Awards
- Katy at the 2011 Logie Awards
- Katy at the 53rd Annual Grammy Awards
Watch "Celebrity Diet Tips"
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