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Miranda Lambert has a message for those who say she had surgery to lose weight.

The singer posted a letter to her fans on Monday blasting false reports regarding how she shed the pounds.

“Though I NEVER care what the tabloids have to say about me I wanted to address this certain story they are running this week and set the record straight. I DID NOT have surgery to lose weight. That is ridiculous,” she wrote.

Added the star: “I lost my weight the healthy and good old fashioned way. Watching what I eat and working out with my trainer Bill Crutchfield.”

Lambert, who dropped a dress size, also admits in the letter that she doesn’t know how many pounds she’s lost.

“It’s not about a scale. It’s about how you feel and how your jeans fit. And on November 10th when I turned 30, my skinny jeans were finally baggy! Mission accomplished! So for anyone who is tempted to read the “Trash Talk” please don’t,” she said. “I am proud to be a normal size girl and I want to encourage everyone to be confident at any size.”

RELATED: Miranda Lambert Reveals Her Diet Secrets

The singer recently told PEOPLE the key to her successful weight loss is portion control and her workouts with Crutchfield.

“We do cardio, a lot of circuit training. We do things with my body weight, like lunges. A lot of stuff with [resistance] bands,” she said. “The stuff nobody loves, but it works!”

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