We all know Justin Bieber has a silly side, as evidenced recently by an interview the singer conducted entirely in a British accent.
But the young superstar can also get quite sentimental, an emotion he displayed in a self-filmed video prior to taking the stage in Mexico City this week in front of hundreds of thousands of concert goers.
Watch him thank fans during a quiet moment backstage now:
Justin - whose new album goes on sale Monday and who just released "Beauty and a Beat," his collaboration with Nicki Minaj - performed a set that included a rousing rendition of ""Boyfriend." Check it out below.