11.26.12 7:44 PM ET

Justin Bieber Wears Overalls to Meet Canadian Prime Minister

And stands by his decision three days later.

Justin Bieber has never been known for his refined taste in clothing. Backwards caps, XL white wife-beaters and an addiction to drop-crotch pants. But it still came as a surprise when the 18-year-old singer showed up to meet the Canadian Prime Minister wearing a simple white Tee, bulky silver chain, bracelet, backwards cap and – overalls.

Prime Minister Stephen Harper bestowed Biebs with a Diamond Jubilee Medal in Ottawa on Friday -- and onlookers and media outlets were quick to judge the freshly-legal pop star for his less than formal getup. Gawker dubbed Bieber the "White Trash Prince," but Bieber fired back: “The pic of me and the Prime Minister was taken in a room in the arena where i was performing at that day.” He continued: “If you . . .expect me to have a change of clothes let a loan [sic] a suit at that specific time that's crazy.. Wow am i ever white trash." During a concert where he often has several outfit changes -- well, that actually wouldn’t be too much to ask.

Lucky for Bieber, Harper responded comically to the incident, tweeting this response from his official account: "In fairness to @justinbieber, I told him I would be wearing my overalls too. #cdnpoli #beliebers"