Lady Gaga courted controversy at a gig in Northern Ireland over the weekend, it's been reported.

The singer, who has become known for her outrageous behavior, amused fans by biting the head off a Barbie Doll during her Belfast show, the Sun reports.

Currently on her sell-out Monster Ball Tour, Lady Gaga posted a picture to all her Twitter followers after the show off herself wearing an 'I Love Belfast T-shirt' covered in fake blood.

She wrote: "For Halloween I'm going to be...a little monster!!! I love you all so much! Celebrate yourself!"

The event added to Lady Gaga's infamous appearance at this year's MTV Video Music Awards, where she caused controversy by wearing a dress made entirely of meat.

(by Holly Frith)