The Canadian teen sensation, Justin Bieber has, in an heroic act, invited Australian kid, Casey Heynes to share the stage with him during his Melbourne concert Monday night.

Casey Heynes is the teenage student from Chifley College Dunheved Campus in St. Marys North, NSW, Australia and who became a viral hero in March after a video of him fighting back when bullied by other a group of students.

Click to see the video showing Heynes standing up for himself when taunted by a group of boys after he has had enough.

In his attempt to pay tribute to the inspiring strength showed by Heynes, Justin Bieber introduced the Aussie kid to the screaming audience before he performed his hit song, “Never Say Never”.

''Everybody give it up for this kid,'' Bieber said as he introduced Heynes to the audience, according to Herald Sun.

Bieber added: "I just wanted to say, he is very inspirational, he shows other people to stand up for what they believe in."

The Herald Sun noted that the ten-grader Heynes who has been bullied all his school-life, received praises from hundreds of internet users after fighting back to a group of boys taunting him with disparaging and insulting remarks.

The video has been viewed in YouTube by nearly half a million users and Heynes has then inspired bullying victims in many parts of the country and around the globe.

After their meeting at the concert Monday night, Bieber was reported tweeting with the link of the Australian kid - - described as a “gentle giant who has had enough” - - slamming his aggressor: "This is Casey the punisher... a kid who stood up for himself against bullying. a real life hero."

Click to watch the video of Justin Bieber on stage with Australian bullying-victim, Casey Heynes.