An intruder has been arrested inside Justin Bieber's home.

Qianying Zhao - who stands 5'5" and weighs just 110 lb - was discovered sleeping in a bedroom inside the pop star's Atlanta home by the niece of the property owner yesterday. She called police, who woke the woman and, when questioned, the alleged trespasser claimed she had met the "Beauty and a Beat" hitmaker on Twitter and was visiting him for a birthday party.

When she realized she was too late for the party, she instead found an open door and decided to let herself in to wait for the 20-year-old singer.

According to gossip website TMZ, Zhao was arrested for criminal trespass and placed into double-locked handcuffs with her hands behind her back. It is unclear whether Justin - who moved to Atlanta recently following a string of incidents and rows with his neighbors in California - was at home at the time of the incident.