Wednesday June 20, 2012

NEW YORK -- Justin Bieber had an unplugged performance at the Apollo Theater on Monday, but it wasn’t intentional -- a problem caused a power outage during the singing sensation’s big concert.

The singer was nearing the end of a private show in front of a packed house when the power for most of the stage instruments suddenly went out, said his manager, Scooter Braun.

But Bieber still managed to finish his show, with the help of fans singing along with him.

The power outage, which affected only the stage instruments and some lighting, occurred toward the end of the show. Braun said they were told the problem was supposed to be only a few minutes, but it stretched to more than 40 minutes.

At first, Bieber took the outage in stride.

He then got on the drums, which were working, for a solo, and had the crowd serenade Braun for his birthday.

But then Bieber got upset at the disruption of the show, which was being taped as part of an NBC special to air later this week.

However, instead of getting mad, Bieber decided to put his energy into performing for his fans, who stayed in the audience during the delay.

Bieber’s concert was part of a series of promotional appearances to push his album "Believe," out Tuesday. It has garnered strong reviews. Braun said he’s hopeful the album will prove that Bieber has more to him than just hype.