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Lady Gaga marked Halloween 2010 in an unusual manner - eating the head of a Barbie doll during a concert in Belfast.
Word is Gaga pulled out the doll before biting its head off - provoking comparisons with Ozzy Osbourne's legendary bat-eating antics.
It's also reported the star performed on a burning piano on stage.
After the concert, the star uploaded a photo on Twitter of herself wearing a t-shirt that featured the slogan 'I Love Belfast' on it.
Underneath she put "For Halloween I'm going to be...a little monster!!!! I love you all so much! Celebrate yourself!"
GaGa requested 24 hour protection during her visit to Northern Ireland.