Emma Watson stopped by US border officials

According to The Sunday People, the 22-year-old 'Harry Potter' star singled out after landing at New York's JFK airport and told she should be accompanied by an adult.

The flustered actress, who was eventually waved through and managed to laugh off the incident, later revealed that she is often mistaken for a kid and blamed the fact she was wearing a schoolgirl-style backpack.

According to a source, Watson was mortified, and not only did they not recognise her, they thought she was a child. It was very embarrassing but she managed to awkwardly laugh it off.

The British actress, who recently finished filming her latest movie 'This Is The End', later told of her embarrassment on Twitter.

"Passport control: 'Unaccompanied minor?' Me: 'Sorry?' Passport control: 'Where is ur guardian?' Me: 'I'm 22!!!!!!!' #neverwearingabackpackagain," the Mirror quoted her as tweeting.

"The really sad thing is that this is not the first time this has happened," she added.

The star was returning to the US where she was expected to continue her studies at Brown University, Rhode Island.

Justin Bieber and Selena Gomez Dragged Into Immigration Debate

Singer Justin Bieber and actress Selena Gomez were the subject of a “who’s the immigrant and who’s the citizen” pop quiz -- in Congress on Wednesday. Rep. Luis Gutierrez used the couple, among other sets of celebrities, to point out issues with Arizona’s immigration law, reports MSNBC.

The Democrat from Chicago targeted the recently upheld “Show Me Your Papers” law, which requires police officers to ask for proof of citizenship if they have reason to suspect the person is in the US illegally.

"Justin, when you perform in Phoenix, remember to bring your papers," Gutierrez told Bieber, who hails from Canada.

He also paired basketball players Tony Parker and Jeremy Lin and reporters Ted Koppel and Geraldo Rivera. Parker is French, while Koppel is from England.