According to The Daily Telegraph, Lady G was forced to sing the rest of the track sitting on stage, even lying flat out on the floor at one point.
Reports suggest the singer appeared exhausted and unable to cope with the heat inside the Auckland venue.
GaGa, real nameStefani Germanotta, managed to finish the song but appeared to grimace to the crowd once the performance was over.
This is not the first time there have been concerns for GaGa’s health. In January, the Poker Face star was forced to cancel a gig in Indiana after passing out in her dressing room before the concert started.