The bonkers singer ordered her dressing room at the MTV EMA’s to be kept at a roasting 90 degrees.
Lady GaGa, 25, also demanded her backstage area, which was three times as big as anyone else’s, be stocked with pureed baby food.
She brought with her 33 suitcases and 80 dresses.
The kooky superstar is following the diet and workout plan of US fitness guru Tracey Anderson – who sculpted the abs of Gwyneth Paltrow, 39 and Madonna, 53.
Tracey keeps her workout studios “like a sauna” because sweat is her “fairy dust” to burn off calories.
A source said: “GaGa is sticking to the diet to the letter. It includes pureed food and snacks.
“It’s healthy, but just sounds weird when she demands it in her dressing room.”
GaGa also banned political banners from the audience, as well as fireworks and spiked belts, and ordered 24-hour security for her dressing room to protect her possessions.
Katy Perry also impressed us with her dressing room demands.
Obviously taking no notice of tee-total husband Russell Brand, 36, she asked for her backstage area to be stocked with a case of champagne, red wine and Bushmills whiskey.
Katy, 27, also got minions to decorate it pink and purple. Her favourite pink roses were ordered as well as speakers, an Xbox, scented candles and skincare products that she took home after.
She even had a fuchsia pink carpet laid in her behind-the-scenes retreat.
Before the awards Katy tucked into beef and Guinness stew.
Russell was probably in LA sipping Jasmine tea and doing a yoga DVD.