A 23-year-old woman has been arrested after being found inside the Northside Drive home where pop singer Justin Bieber has been staying.

Sandy Springs police on Wednesday were called to the home that Bieber is renting from music producer Dallas Austin.

Qianying Zhao, of Doraville, was arrested and charged with criminal trespass. Police found the woman inside the home around 5 p.m. after being called there by Ashley Austin, 20, who lives at the home. Zhao had been sleeping in one of the home's bedrooms. She told police that she entered the unoccupied home through an unlocked door. She said she came there to attend Bieber's birthday party, which was held earlier in the week at another location, police said.

She told police that said she was friends with the singer, however police believe she is one of millions who follow Bieber on Twitter.

Zhao was taken to the Fulton County Jail Annex in Alpharetta and booked on the misdemeanor charge.