There’s really no stopping Canadian teen sensation Justin Bieber. Not wanting to disappoint his thousands of tween fans waiting for him in his Manila stop of his My World tour, Justin Bieber decided to push through with the show amidst sickness brought by his reported chest infection.

The teen singer was so sick that he had to take a break to vomit backstage during the concert.

Before taking the stage at Manila’s Mall of Asia, Bieber tweeted: "Sick as a dog... but the show must go on. got called a trooper."

It looks like his desire to make his tween fans worldwide happy is taking a toll on his health but the Biebs is determined to keep his promise to thousands of Filipino fans lined up to hear him sing.

"That show was great but tough. real sick. time to rest," Bieber posted on his Twitter after the show, according to The Herald Sun.

Click to watch the clip of Justin Bieber singing "One Less Lonely Girl" during his show in Manila.

Now that the show is over in Manila, Bieber’s next stop is headed to Japan. The teen singer has one week to gather his crew for his two shows in the disaster-stricken country in the Far East.

Earlier reports came out that the singer’s crew were reportedly having second thoughts to join him in Japan for fear of radiation exposure. Because of the twin disaster that hit a number of areas in Japan, a part of the nuclear plant in

Fukushima was destroyed and radiation was earlier believed to be inevitable after the reported series of fires and explosions in the plants.

But Bieber confirmed early this week that he would show up in the scheduled concert in Osaka and Tokyo from May 18 to

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