Gaga security problem at O2

At O2 Arena concert on last Thursday Gaga was allegedly was left "shaken" and "freaked out" when one strange female stalker managed to violate security. After that police called when the stalker was in the direction of the artist’s dressing room after did all efforts to gain access. The stalker was identified by Gaga’s security members who then contacted the police after that incident. Officers asked questions with women on the place before finally letting her go.