Justin Bieber met his sovereign nation's leader to receive the Diamond Jubilee Medal ("awarded to people who have made a significant contribution to a particular province, territory, region or community within Canada, or an achievement abroad that brings credit to Canada"), which, sure, makes sense. Less predictably, Young Swaggy wore overalls and a hat for the occasion. "In fairness to @justinbieber, I told him I would be wearing my overalls too," tweeted Prime Minister Stephen Harper, throwing in a #beliebers for good taste. Bieber's take? "I met the Prime Minister in overalls lol."