Bieber's groupie calls cops after freaking out at his party

One of the guests in Justin Bieber's party turned into a spoil sport, as her cranky behavior led to cops showed at the singer's hotel in London.

According to sources, one of the women guest, who was allegedly partying with the 'Baby' hit-maker, freaked out in the hotel 's lobby and to ensure the woman's welfare cops showered at singer's hotel, TMZ.com reports.

Sources revealed that the woman reportedly ran into the lobby yelling, "Where's my friend? I'll call the police!"

The women was safe and was in good health.

However, the Police did not take any action as no crime was committed.