A niece of Dallas Austin, Bieber's music producer landlord, reportedly came home to find Qianying Zhao asleep in one of the house's four bedrooms.
Austin's niece called the police, and law enforcement had to wake up the tiny 5-foot-5-inch, 110 pound intruder who was still sound asleep in the bedroom.
Zhao told police a strange story about how she had met Bieber on Twitter and that she had come to the house to visit him for a birthday party. Zhao said she realized she was too late for the party and let herself in to wait for him.
Zhao was arrested for criminal trespass and escorted in handcuffs from the house.
Bieber did celebrate his twentieth birthday last Saturday. It is unclear if this is the party Zhao was referring to. It is also unknown if Bieber was at home during the incident.