Troubled teen heartthrob Justin Bieber was stopped by immigration officials at Los Angeles International Airport and questioned "for a lengthy time".
The Canadian popstar underwent additional screening by the airport officials following his arrival from Japan yesterday, Reuters reported.
It was unclear why this was considered necessary or if it was connected to Bieber's recent legal troubles.
Almost 275,000 people have added their names to a petition calling on President Barack Obama to revoke Bieber's green card.
The White House has responded to a petition calling to deport pop singer Justin Bieber from the US, saying: "Sorry to disappoint, but we won’t be commenting on this one."
Almost 275,000 citizens have added their names to a petition on the White House website calling on President Barack Obama to revoke the Canadian-born singer's green card.
The White House said in a statement: "To avoid the appearance of improper influence, the White House may decline to address certain procurement, law enforcement, adjudicatory, or similar matters properly within the jurisdiction of federal departments [...] in its response to a petition.
"So we'll leave it to others to comment on Mr. Bieber’s case, but we’re glad you care about immigration issues. Because our current system is broken."
It ended saying: "You better believe it," an apparent reference to the "Belieber" term used to describe Bieber's legions of adoring, mostly pre-teen fans.
A judge has set a May 5 trial date for pop star Justin Bieber, who faces charges of driving under the influence, resisting arrest and possessing an invalid driver's license.
Speaking at a brief hearing today, prosecutor Daniel Diaz-Balart said no plea offer has been made for 20-year-old Bieber, who has pleaded not guilty.
An initial March trial date was postponed while attorneys for news organisations and Bieber wrestled over the release of police videos that show him giving a urine sample for a drug test.
Bieber and R&B singer Khalil Amir Sharieff were arrested in Miami Beach, Florida, on January 23 after what police said was an illegal drag race with high-end sports cars.
Footage of an obstructive and disrespectful Justin Bieber has emerged of the singer being interviewed by a lawyer over an impending lawsuit.Read the full story ›
Police in Atlanta have arrested and charged a 23-year old woman found sleeping at a home rented by Justin Bieber.Read the full story ›
A woman was arrested after she was found sleeping in a bedroom at a home rented by Justin Bieber.
Qianying Zhao, 23, was found at the home, owned by music producer Dallas Austin, yesterday Atlanta police said.
She reportedly told officers that she had come to attend Bieber's birthday party - which was held earlier in the week at another location - and entered the unoccupied home through an unlocked door.
Ms Zhao, who faces a charge of criminal trespass, said she was Bieber's friend, but investigators believe she is just one of millions of fans who follow the pop superstar on Twitter.
Earlier, US police controversially released a video of Bieber providing a urine sample following his arrest for driving under the influence in January.
US police have released a video of Justin Bieber providing a urine sample after he was charged with driving under the influence.Read the full story ›
With police set to release a video of Justin Bieber providing a urine sample following his driving under the influence (DUI) charge in January, we asked ITV viewers whether they thought the move - approved by a Florida judge - infringed the pop star's privacy.
Diane Taylor said: "I think it is a gross invasion for the police to release photographs of him like this - so unfair."
"Who wants to see him or anyone for that matter giving a urine sample?" Alison Wadey added. "Please lets keep some things private."
Janette Coles said: "Don't like this person, but don't agree with the police releasing these images. A gross misuse of their rights."
"Why don't they just leave the poor kid alone and go find someone else to pick on?" asked Teresa Harris.
To add your views, visit the ITV News Facebook page
Miami Beach police department has released 10 revealing pictures of Justin Bieber showing the pop superstar's extensive tattoo collection.Read the full story ›
Video of Justin Bieber taken during his January arrest shows him wobbling on his feet during a sobriety test.
In this screengrab, the 19-year-old Canadian pop star is being searched by a Miami police officer.