LONDON (AP) -- Justin Bieber has apologized to his young fans -- and their outraged, overtired parents -- after they accused him of taking the stage almost two hours late for a concert in London.
The singer insisted Tuesday he had been only 40 minutes late, and blamed "technical issues."
But, he adds in a tweet to his 35 million followers: "There is no excuse for that and I apologize for anyone we upset. However it was great show and I'm proud of that."
Concertgoers say the teenage star appeared onstage at the 02 Arena on Monday at 10:30 p.m., when the start time had been listed as 8:30.