Wearing one of her trademark eccentric ensembles, the singer sent the crowds wild singing some of her most popular hit singles including Just Dance, Poker Face and Paparazzi.
Shortly after GaGa’s set, Katy Perry then appeared on the main stage putting on an equally lively performance whilst wearing a tartan, revealing dress.
While we’re on the subject of Lady GaGa, we hear on the grapevine that the singer is planning to re-release her debut album The Fame with extra horror-inspired songs.
Apparently GaGa has become fascinated with "death and sex", and wants her new re-worked album to reflect her new obsession:
"My re-release is called The Fame Monster so I've just been sort of bulimically eating and regurgitating monster movies and all things scary” she said.
"I've just been noticing a resurgence of this idea of monster, of fantasy, but in a very real way. If you notice in those films, there's always a juxtaposition of sex with death."
She added: "That's what makes it so scary. Body and mind are primed for orgasm and instead somebody gets killed. That's the sort of sick, twisted psychological circumstance."
Hmmm… can someone please shut her up?!