In fact, the shocking performance has even stunned the singer’s fans, with some criticising her online.
The 27 year old began by appearing on stage on a roasting spit while her dancers baster her and a woman ate sausages in a provocative manner.
So far, so normal for Lady Gaga, however it was during her rendition of upcoming single ‘Swine’ that things took a turn for the worse, as ‘Vomit artist’ Millie Brown joined her on stage.
The ‘artist’ can clearly be seen sticking her fingers down her throat and vomiting a bright green liquid, on stage, all over the singer.
And although the pair have worked together before, this is one of the most shocking displays to date.
Unfazed by her bizarre actions, she continued on with her show and told the crowd:
“I love my fans because they always let me be myself and they don't care what anybody says.
“It's so much easier to be yourself than it is to be somebody else. Because then you have to pretend to be someone else and like things that you don't like and do stuff that you don't want to do.”
But with some fans shocked by the latest stunt, has Lady Gaga finally taken things too far?
By Kiara Keane