Emergency services were called to Justin Bieber's Los Angeles home early on Saturday (14Dec13) after a female guest passed out during a late-night party. Paramedics were reportedly dispatched to the Boyfriend hitmaker's Calabasas mansion after a 20-year-old female was taken ill at a bash thrown by the pop superstar. However, according to editors at TMZ.com, the woman later regained consciousness and insisted the emergency call be cancelled. She was not taken to hospital. The party incident is the latest drama in Bieber's life following a troublesome trek Down Under - earlier this month (Dec13), the singer and his entourage were detained for a short time in an Australian airport on suspicion of drug offences, while he has also been accused of showing up late to shows on his Believe tour and defacing walls with graffiti in Brazil and Australia.