Ever the professional pop superstar, she threw up a total of three times with her back turned to the audience while singing "Edge of Glory." All the while, a backup dancer performed in front of the singer, in an apparent effort to shroud the display of sickness.
Gaga being Gaga, she had a sense of humor about the whole thing. Afterward, she tweeted a link to video, confessing, "Was praying nobody saw but actually its quite a good laugh if u need one! Check out Lady PukeGA doing Swan 'Vomit' Lake."
She later added, "I think I just cried a little watching that," and tweeted in reply to a fan, "It was pretty metal. Belligerent throw up during sax solo amidst epic power ballad about glory atop medieval castle? Metal."
Watch the video below. Warning: not for the faint of stomach.