On the latest filming of�MBC's 'Quiz to Change the World', trot singer Jang Yoon Jung revealed that she lost weight soon after giving birth to her first baby in order to make her TV comeback.

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A new mother, Jang Yoon Jung had her first child this past January. To explain her slimmer figure, Jang Yoon Jung said, "After giving birth, I lost 15 kg (approx. 33 lbs) in only three months in order to return to broadcast."

She explained, "Because I have to breastfeed, I ate oatmeal and low-fat side dishes instead of rice, which absorbs nutrients." The singer added, "Although I really dislike exercising, I started�exercising�hard for my diet two weeks after giving birth."

This episode of 'Quiz to Change the World' airs on November 18 at 11:15PM KST!