updated 07/23/2014 AT 3:25 PM ET
•originally published 07/23/2014 AT 5:15 PM ET
Lady Gaga is making no apologies for her figure these days.
The “Born This Way” singer, 28, was criticized for looking heavier while performing at the MGM Grand Garden Arena in Las Vegas on Saturday, but she took to Instagram to fight back.
After the performance during her ArtRave tour, Gaga posted a sexy black-and-white photo whose caption, “Curvy and Proud,” was accompanied by an emoticon of a pig.
The picture, which currently has more than 144,000 likes, was fueled by harsh Twitter comments similar to those from one follower who wrote: “This isn’t sexy. This is FAT.”
This isn’t the first time Gaga has had her weight scrutinized. In 2012, the singer showed off a curvier silhouette and said during a radio interview she had gained about 25 lbs. “I really don’t feel bad about it,” she said. “Not for a second.”
Her perspective comes from a longtime struggle with bulimia and anorexia since she was 15.
After sharing the shocking news on her website, Little Monsters, she went on to start a movement she dubbed Body Revolution 2013, posing in a yellow bra and underwear in a bid “to inspire bravery” and encourage others to “post a photo of you that celebrates your triumph over insecurities.”