Kelly Osbourne's weight loss secret: Come on, get happy!

Kelly Osbourne wants to make one thing clear to those who now envy her svelte form — she got happy before she got thin!

In a new interview with In Touch Weekly, Kelly Osbourne reveals life is full of surprises, and these days she's doing things she never would have imagined when she was heavier.

"[Working out] is something I really enjoy doing," the 5-foot-2-inch Fashion Police host, who now weighs a trim 112 pounds, admitted. "I never thought I’d be that kind of girl."

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Describing the daily routine to keep the pounds away, Osbourne went on, "I do up to half an hour of cardio, and I also do circuit training, yoga or Pilates — I mix it up."

Aside from one cheat day a week during which she can eat whatever she fancies, the 28-year-old sticks to a simple combination of foods.

"For breakfast, I will eat either cereal or a little omelet thingy made with egg whites, mushrooms and spinach," she shared. "Lunch is usually a salad or a turkey burger. And then for dinner, I’ll have brown rice with vegetables and some kind of meat."

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Diet and exercise aside, Kelly Osbourne insists happiness is the bottom line. The woman who famously lost 50 pounds during her spin on Dancing with the Stars explained, "People think I lost weight and then got happy, but that's not how it works. You have to get happy first. I made a life change, and the weight loss was an amazing perk."

Do you believe Kelly Osbourne's "get happy" advice is the real key to weight loss?

Image via WENN