Lady Gaga fat: Mother Monster takes to the stage in her usual array of skimpy outfits in Zurich

Lady Gaga took to the stage in her usual array of skimpy outfits in Zurich, Switzerland, on Wednesday.

Lady Gaga, 26, who has become an advocate for curvy girls after recently gaining 25 lbs, confidently strutted around in her tour costumes, which includes a leather g-string and fishnet tights get-up.

It comes just days after Lady Gaga, who has battled bulimia and anorexia, took to social media to launch a sub-section of her site, called Body Revolution.

As well as the series of half-naked images, Lady Gaga wrote: “Today I join the BODY REVOLUTION. To Inspire Bravery. And BREED some m$therf**king COMPASSION.”

The page continues: “My mother and I created the BORN THIS WAY FOUNDATION for one reason: <<to inspire bravery>>.

“This profile is an extension of that dream. Be brave and celebrate with us your <<perceived flaws>>, as society tells us. May we make our flaws famous, and thus redefine the heinous.”

Lady Gaga performs in Zurich, Switzerland, on Wednesday

Lady Gaga recently said she’s happier than ever with her body, especially because partner Taylor Kinney is a huge fan of her new fuller figure.

Writing on her blog, she said: “My boyfriend prefers me curvier.

“When I eat and am healthy and not so worried about my looks. I’m happy. Happier then 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.”

Lady Gaga also thanked her fans for supporting her during her struggles and giving her the self-confidence she has always needed.

She wrote: “My weight/loss/gain since I was a child has tormented me. No amount of help has ever healed my pain about it. But you have.”

Lady Gaga recently revealed the reason behind her weight increase was down to her father’s restaurant in New York.

She said: “I love eating pasta and I’m a New York Italian girl. That’s why I have been staying out of New York.

“My father opened a restaurant. It’s so amazing … it’s so freaking delicious, but I’m telling you I gain five pounds every time I go there.

“So my dad wants me to eat at the restaurant, and I’m like, <<I’ve got to go where I can drink green juice>>. “