Meghan Trainor has spoken out against the haters who have "attacked" her new appearance following her weight-loss journey.

The All About That Bass singer revealed earlier this year that she had undergone breast augmentation surgery and lost 60 pounds (27 kilograms) using the weight-loss drug Mounjaro.

In an interview with Entertainment Tonight, Meghan admitted the negative comments about her new appearance are "getting louder", but she's "never felt better".

"I'm literally for the first time ever, after having babies, taking care of my health to the highest level and I've never felt better and I look incredible. I feel great," she insisted. "And that's when people attack me."

The 31-year-old, who has two sons with actor husband Daryl Sabara, noted that she's trying to block out the backlash because she knows she's prioritising her health.

"I'm taking care of myself," she stated. "I have to find a way to not be affected by that."

The Lips Are Movin' singer candidly revealed in March that she was taking Type 2 diabetes medication Mounjaro as a weight loss drug. She later explained that she started taking the injections, working with a dietician and trainer, after giving birth to her second child in July 2023.

Meghan has used her backlash as fuel for her songwriting, as she sings about her experience with body-shaming on her new single, Still Don't Care.

"People started commenting about my body, saying I'm too thin, and that they don't recognise me anymore. And I was like, 'Oh, I've just been focusing so hard on my health and my fitness that I've never felt better.' So, I was confused and sad and was like, 'Oh, it's almost worse now.' I don't know what happened," she told People.

"I liked the idea of... 'Let me think about it one more time. Nope, I still don't care.' And I know that when I start singing it, it'll be my therapy, my exposure therapy."