Lady GaGa Security Scare

Lady GaGa was reportedly left "shaken" and "freaked out" when an alleged female stalker managed to breach security before her O2 Arena gig last Thursday.

The Mirror claims police were called in after the intruder was spotted backstage heading in the direction of the singer's dressing room, after using various forged backstage passes and laminates to gain access.

The intruder was discovered by members of GaGa's security entourage, who subsequently contacted the police. Officers questioned the woman on site before eventually letting her go.

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A source said: "This was a serious breach of security and the woman was heading in the direction of the stage and, more worryingly, GaGa's dressing room.

"This woman had gone to great lengths to produce all the fake documentation so she could move at ease in the holding area backstage."

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After the security scare, GaGa continued her show at the venue.