Canadian teen sensation Justin Bieber has revealed that his recent trip to Guatemala with Pencils for Promise was life changing. 

In a newly shared YouTube video, he addresses his fans and explains that the experience of seeing how those less fortunate live and realising that they find happiness in the things he takes for granted taught him a lot:

"Today was probably one of the most magical days of my life. I got to visit a place that I didn't even know existed. So many beautiful children who are very, very less fortunate [...] It was just a wake-up call for me. It was, like, any problem that I have... it's nothing. These kids have absolutely nothing: no food, no water, no education. Yet we're stressing over the little things and they're so happy. It's selfish."

Bieber also shared a snapshot of himself with some of the children he met via his official Instagram page, which he accompanied with the caption: "I gave my little friend Ricardo my sunglasses he was showing his friends what the sun looked like with them on ... Let's all help change the world."

He spent time in the area building a school for the kids and Pencils for Promise, which is an educational non-profit organisation, was founded by his manager's brother (Adam Braun) back in 2008. Watch the video here: