Transcript for Miranda Lambert Denies Rumors of Weight Loss Surgery
Thanks, lara. Turn to the rumors around miranda lambert. Slamming reports that she had weight loss surgery. Sara haines has the story. Thank you so much. Reporter: She won big. ♪ Reporter: And rocked the stage at the country music awards. ♪ A song I could sing along ♪ Reporter: But miranda lambert debuted more than her duet with keith urban that night. At had tongues wagging, was her svelte new figure. Noticeably thinner than at the kentucky derby. Blake shelton couldn't help but tweet, my wife is so hot, it's ridiculous. Reporter: At the time, she cold e! News and "people" magazine, it's all about diet and exercise. I have been working a lot. And working out and drinking juice. Reporter: But soon came the rumors that lambert underwent weight loss surgery. This morning, the "white lair" singer is calling the reports just that, lies. Writing on her blog, I wanted to set the record straight. I lost my weight the healthy and good old-fashioned way. She's a petite woman. So, it's within realistic expectations that she would have lost the weight, as she claims. Reporter: Lambert says, it's not about a scale. It's about how you feel. AND ON NOVEMBER 10th, WHEN I Turned 30, my skinny jeans were finally baggy. Mission accomplished. She doesn't normally comment or speak to things in the tabloids. But this time, she felt it was important to set the record straight. ♪ Reporter: For "good morning america," sara haines, abc news, new york.
This transcript has been automatically generated and may not be 100% accurate.