Justin Bieber spent hours on involuntary lockdown on Thursday in Liverpool (birth place of The Beatles, baby) after such a huge crowd of screaming girls gathered outside his hotel, officials were scared a riot might start.

Once the police convinced themselves they could control the crowd, they allowed the Biebs to stand on his balcony and wave to the fans. The idea was that seeing Justin would give them what they came for, and they would naturally disperse after his appearance. But the crowd remains as enthusiastically out of control as ever. Justin had to cancel a scheduled concert because the environment was so unsafe, he couldn't even leave the hotel.

Maybe let him sing a few bars of “Baby” to quiet them down?