TEEN superstar Justin Bieber made five teenagers' day after chatting with them at Beaconsfield Service Station.

Anna Davies, Lucy Morrison, Molly Holderness, Gurkiran Grewal and Isabel Shaw, who attend Dr Challoners High School in Chalfont, spotted the singer buying some food at McDonalds.

He was en route to his Birmingham concert after flying in to Heathrow from America.

Lucy Morrison, 17, from Chalfont, said: "It was really exciting, he was quite quiet but he was friendly though and seemed happy to have a picture with us.

"Not many people recognised him, especially since he's had his hair cut, it was only us and another couple.

"I think he's OK, I'd rather meet Michael Buble, but my friend Anna is his biggest fan!"

The singer is currently performing the UK leg of his world tour until March 24th.

The Canadian singer shot to fame last year with his single 'Baby', which reached No.3 in the UK charts, despite being only 15.

The 'Baby' video is currently ranked as the most viewed video on YouTube.

Now 17, he is a teen idol and recently starred in his own 3D bio-pic film 'Never say Never' which followed him on his concert tour.

He was well-known for his signature floppy hair and when he shaved it off recently, locks donated to charity sold for £25,000.