Earlier this week, teen sensation Justin Bieber made headlines after turning up over 2 hours late to his own concert at London's O2 Arena and now some of his fans who were in attendance have spoken out about their ordeal.

Many gig-goers were forced to leave early in order to make it home and several O2 employees reported 'backstage arguments' between the 'Boyfriend' singer and his entourage.

The Sun quotes staff member Ellie Grace as saying: "I hope I never have to experience so many upset children and disappointed fans again. I’d love to know why Bieber felt it was alright to leave 20,000 people waiting for two hours.”

One young fan's father explained how his daughter won a 'meet and greet' experience with the superstar, but he didn't fully honour the commitment: "The way he has treated my daughter and her friend is appalling, like dirt. They won the competition to meet him, but paid an extra £150 each to see him in concert afterwards and how has he repaid them? By acting like a spoiled brat. It's disgusting."

Another parent, Lindsay Gilbertson, whose daughter was at the event, revealed she was told that the 19-year-old was exhibitioning 'diva-like' behaviour before his set: "We were told he was kicking up a real fuss. He was saying, ‘It’s my show, I’ll go out when I want to’."

Meanwhile, a 15-year-old Belieber who asked to remain anonymous to The Sun reporters that she also attended a meet and greet with him, but when she asked for a hug he told her "I don't have time".

Check out footage from inside the arena while fans were kept waiting here: