The 19-year-old 'Baby' hitmaker headed into the Central American jungle following his concert in Guatemala City, where he was spotted giving a hand to the locals in constructing a schoolhouse, reported Contactmusic.
Later Bieber, posted a video on his blog describing his experience on the trip.
"One of the most amazing, powerful experiences of my life. I feel like they helped me as much as I helped them," he said in the video.