What to Read Next

Is Justin Bieber Losing it? The Teen Heartthrob Posts Twitter Rant Before Stepping Out In Bizarre Gas Mask

7 March 2013
Bieber Fever / Splash News/ Craig Harris/WENN
Bieber Fever / Splash News/ Craig Harris/WENN

Justin Bieber has been getting up to some pretty wild antics while in the UK and raised even more eyebrows when he stepped out wearing a bizarre gas mark last night.

The Canadian singer was spotted wearing the odd head piece as he headed to Japanese restaurant Nobu in Knightsbridge with his entourage.

Is Justin Bieber Losing it? The Teen Heartthrob Posts Twitter Rant Before Stepping Out In Bizarre Gas Mask
View photos
Is Justin Bieber Losing it? The Teen Heartthrob Posts Twitter Rant Before Stepping Out In Bizarre Gas Mask

Justin wore a gas mask whilst heading to dinner in Knightsbridge (Bieber Fever / Splash News)

Bieber was is no mood to be photographed as he pulled his cream hooded jumper and a baseball cap over the mask to cover up as much of his head as possible before.  After his meal, Bieber  made his made to 45 Park Lane, with his mask in tow, to continue a "chilled" evening with friends.

The star's weird behaviour comes after he took to Twitter to slam critics in a lengthy tirade in which he justified his partying, asked not to be judged and said he would remain positive despite the negative press attention of late.

"So yeah I will continue being me. i will continue to serve, to perform, to care, to love, to smile, to dance, to play, to sing... " Tweeted Bieber, adding: "but know this...im only judged by one power, and i serve him."

Is Justin Bieber Losing it? The Teen Heartthrob Posts Twitter Rant Before Stepping Out In Bizarre Gas Mask
View photos
Is Justin Bieber Losing it? The Teen Heartthrob Posts Twitter Rant Before Stepping Out In Bizarre Gas Mask

Bieber has been raising eyebrows with his wild antics in the UK (Craig Harris/WENN)

Continuing: "I understand it is part of the job to be judged...but judge me on the facts, judge me on the music, and be careful of the judgement u pass.

"Or any girl i stand next to is my girl or that i dont care, or that i dont feel, or that a 19 year old going to a club in europe is wild..."

Since landing in the UK, the teen singer has made constant headlines over his colourful love life in which he has been seen with several mystery woman, with some allegedly returning to his hotel.

Added to that, the popstar was also forced to carry out damage control after arriving two hours to his 02 concert last week, which insiders have claimed was down to Bieber throwing a mega tantrum.

Do you think Bieber is losing it?

'I Feel Like Someone Stole My Kid' Says Nicki Minaj On A Contestant's New Look For American Idol's L
Zayn Malik Behaves Himself As He Spends Quality Time With Mum In Ireland
Mila Kunis Radio 1 Presenter Chris Stark's Video Goes Viral After Bizarre Booze And Football Filled

Drivers With No Tickets In 3 Years Must Read This

United States drivers are stunned that they never knew this. If you drive less than 50 mi/day, you better read this...

Kid sleep troubles email series for moms

We get it. We’ve been there. Sign up for our email track to learn how to handle kids who won’t go to sleep or won’t stay in bed.

The New Fuel Behind Oil's Death Spiral

A stunning breakthrough in chemical engineering has unleashed a massive supply of fuel that could hand the United States 100% energy independence.

Free Samples Sites- Why You Should Pay Attention

Sign up now for freebies so good you will feel guilty not paying for them! No credit card or purchase necessary.

Insane Navy Seal Flashlight, should it be banned?

The Military has recently released technology that is now available to the public. Get yours before they run out - Limited Supply!

Starwood Credit Card

Earn 25,000 Bonus Starpoints®! Use toward Award Nights or Flights.

Men: Tighter Looking Skin In One Easy Step

How older men tighten their skin and reduce the look of wrinkles without cosmetic procedures.

Heartburn During Pregnancy

Dealing With Pregnancy is Hard Enough. Getting Heartburn While Pregnant is a Pain. Learn What Causes Heartburn During Pregnancy.

Get vitamins here. Change lives everywhere.

For kids like Rosemary, proper nutrition makes a big difference. See how you can help kids everywhere just by buying your vitamins at Walgreens.

An Overlooked Method To Pay Off Your Credit Card

If you're paying credit card interest, you could save hundreds or thousands of dollars by transferring your balance to this no-fee card.

VA Mortgage Rates In 2016

VA Rates as Low as 2.75% (3.028% APR) 15 Year Fixed. Exclusive For Veteran & Military Takes 1 Min!

Over 100 million items. It s all here at Sears.com

Save Big on Appliances, Apparel, Lawn and Garden, Tools and more. Staying Warm, or Adding a Cozy Touch to Your Home, Start Your Search at Sears!

Banks Are Worried Homeowners Will Do This.

Homeowners are surprised and furious. If you owe less than $625,000 on your home, you better read this.

Hurry, Don't Be Late For This Very Important Deal!

Get 4 Disney Movies For $1 With Membership. See Details. Exclusive Titles, Merchandise, Offers & Discounts. Plus, Free Shipping On Your Initial Order!