Canadian pop singer Justin Bieber performs during his "Believe" concert at the Olimpic Stadium in Santo Domingo October 22, 2013. REUTERS/Ricardo Rojas

"Believe" star Justin Bieber had many of his fans disappointed after the star walked off the stage during his Sao Paulo concert in Brazil.

The star decided to cut the concert short, after being hit by a water bottle.

On Nov. 2, shirtless Justin Bieber was performing on his song "Boyfriend" when he was attacked by a fan on stage by hurling a water bottle. It hit the star on the face and his microphone dropped off onstage. The attack caused him to depart from the stage and to end his show.

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Credit: YouTube.com/Justin Bieber Videos

It is reported that Justin Bieber, after being attacked with the water bottle stared in the direction of where the bottle came from and then decided to leave the show that very moment. Fans of the "Believe" star waited for Justin to return, but in vain.

It is reported that most of the people in the crowd were oblivious to the incident that led the star to stop the Sao Paulo concert.

"The scene was so shocking that even his dancers couldn't believe what they had seen. The fans didn't know what was going on and stayed in their seats for half an hour, hoping that he would come back and finish the show," reported Felipe Gladiator, a G7 critic.

It is also reported that Justin Bieber's fans started singing his song "Baby" when he departed the stage but their plea was not heard. And then the fans who were waiting, took the hint from the crew who was packing up the equipment.

The Brazilian media reported that the fans were already annoyed due to Justin Bieber's an hour and twenty minutes late arrival to the arena.

"Once again the music was left to one side and the ego took over, his blood boiled and the rebellious teenager wiped out the talented singer. A night of fun was overshadowed by a few seconds of anger and immaturity," Felipe Gladiator further reported.

After disappointing his Brazilian fans, "Believe" star Justin Bieber has been recently dethroned by singer Katy Perry who is now the most followed person on Twitter.

Before the incident where Justin Bieber walked off stage after being struck by a water bottle in Sao Paulo concert, he was also spotted sneaking out of a brothel in Rio De Jeneiro, Brazil.