Justin Bieber's metallic sports car has been mistaken for "a spaceship".

The singer sparked numerous 911 calls when he was driving down the 101 Freeway outside Los Angeles in his silver mirror effect Fisker last week.

The Boyfriend star was reportedly speeding because he was being followed by paparazzi and caused seven individuals to phone the emergency services because the driving style was considered unsafe.

"Justin Bieber would be shocked... SHOCKED... to know not a single person who called 911 - and there were 7 - as he roared down the 101 Freeway last Friday could ID the kind of car he was driving ... and one caller went out on a limb and described it as a spaceship'!" TMZ reports. "We've now obtained recordings of all 7 911 calls. Descriptions of Bieber's ride included: aluminium car', chrome Audi', stainless steel Ferrari' and a spaceship'."

According to the site, Justin was pulled over by police for travelling at 80 miles per hour.

He then phoned 911 himself to report he was being followed by photographers.

"I have like five cars following me," he was quoted as saying by TMZ. "They are driving really reckless." (C) Cover Media