Earlier this week, Lady Gaga posted a photo of herself posing in a nude-coloured swimsuit. Fans described the singer as "beautiful".
As is typical when celebrities post pictures of themselves on Instagram, however, people soon began trolling, leaving comments describing Gaga as "fat".
But instead of ignoring the comments, Gaga posted another photo of herself in the same swimsuit with the caption: "Proud at any size, because the inside is what really counts."
Then, in a series of tweets to her 42.1 million followers, she shared a link to the photo and hit back at the body haters, saying she'd "rather be fat than be shallow".
A few hours later, in a reply to a concerned fan, Gaga slammed the attention her body weight has been receiving when "there's people starving in the world".
Gaga is no stranger to promoting a body-positive outlook: in 2013, she began her Body Revolution campaign, which celebrates "perceived flaws" in her fans, or Little Monsters.
Gaga launched the campaign after telling fans she had suffered from bulimia and anorexia for years. In a 2012 blogpost, Gaga wrote to fans: "My weight/loss/gain since I was child has tormented me. No amount of help has ever healed my pain about it. But YOU have."
She added: "My boyfriend prefers me curvier, [and] when I eat and am healthy and not so worried about my looks, I'm happy. Happier than I've ever been. I am not going to go on a psycho-spree because of scrutiny. This is who I am. And I am proud at any size. And I love you, and want you to be proud in any form you may take as well."