Justin Bieber was left outraged after a fan threw a hat at him during his concert on Friday, 15 July. Bieber, 22, who was on stage at the Boardwalk Hall Arena in New Jersey, paused the concert to lecture one of his fans for throwing him the gift while he was on stage. The rant was filmed and later posted on Twitter.

The controversial singer said: "Take this moment to listen and try not to give me a hat or whatever you're trying to throw onto the stage right now, because I probably don't want that s**t." According to Mail Online, he followed up with an apology, saying, "Sorry that was mean."

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"But yeah, no I lost what I was going to say," he continued, "I was deep into, like, a mode and a zone. I was into it. Now I'm out of it. I'll get it back. Just give me a second."

After pausing for a moment, the Canadian singer apparently went back to performing, as he went from singing Observations into his song Purpose.

"I just wanted to take this moment to acknowledge the fact that we all have a purpose, that we all have a meaning to life and it's not, like, we just don't live to die. And this life is not all struggles. I know that sometimes when we wake up in the morning, and it's like 'God another day.' Sorry for throwing your hat, but you ruined the moment," he says to the fan.

Bieber's fan problems

Bieber has unleashed a fair share of outbursts at his fans, including telling his fans to not take pictures with him. Explaining his reasoning in a heartfelt Instagram message, the Sorry singer said he felt like a "zoo animal" while being constantly hounded for photos by his devoted supporters.

Body language and behaviour expert Judi James, told IBTimes UK that she understand the pressure Beliebers place him under: "[One of] Bieber's problems is his fans. As much as viewers might want to, they cannot use empathy to understand what he is going through right now.

"On the one hand, he has a charmed life. Super-talented, good-looking and rich beyond a normal guy's dreams, he will tend to provoke aspirational thoughts or even envy in his audiences.

"And we need to remember that a Bieber 'audience' is no longer just the ones queuing to fill seats at one of his concerts. Thanks to social media and intrusive press his audience are a constant in his life."

James said that Bieber will only achieve normalcy by giving up the spotlight.

"His comment about no more pics was less about refusing to pose than about his follow-up comment about 'say hi or recognise me as human', which is a loud plea for normality," said James.

Justin Bieber