Credit : Wetpaint Entertainment

Guess Who?

Which Sexy R&B Singer Lost 50 Pounds in 18 Months? (VIDEO)

If there's a will, there's a way! Just ask this sexy star who dropped a whopping 50 pounds(!) in 18 months.

While she was both insanely beautiful and talented before her fitness kick, she's feeling even happier and healthier than ever, and that's what matters most. And the best part? She's not even counting calories!

"Ask yourself, 'Am I really hungry, or am I having this because it looks good?'" she said during a recent interview. "It doesn't have to be about sacrificing all the things you love. Just be conscious of portion size and why you're eating."

As for working out, this newly-engaged R&B princess has made exercise a part of her daily routine. But she never saw the gym as a "battlefield."

"My friend introduced me to a trainer," she explained. "If I couldn't do a sit-up or pull-up, we'd just move on to the next move."

For this 24-year-old songstress, it's all about taking things "one step at a time."

"There is no secret. It's just eating better and working out! It's definitely a daily thing," she added.

Can you guess her identity? Watch the video and tell us if we stumped you in the comments below!