Unlike Liberal MP Justin Trudeau, who dresses to impress with his bright ties and ruffled hair, Harper has always gone for sedate over seduction (check out his decidedly un-fabulous navy suit at this year's G8 conference).
But all that may change.
The 54-year-old was in Bali on Monday to attend the Asia-Pacific Economic Cooperation (APEC) Summit wearing a purple print shirt, known as an "endek" which is a traditional Balinese woven fabric.
In fact, the endek is this year's photo outfit at the APEC Summit, which means all the leaders gathered must wear a variation of the shirt.
According to cctv.com, "the endek is dyed with four colors red, blue, purple and green, chosen by the wife of the Indonesian President, Ani Yudhoyono."
The idea for ditching suits for the traditional garb dates back to the first APEC meeting in 1993 when then-U.S. president Bill Clinton dressed leaders in leather Bombardier jackets.
Do you think purple is a good colour on Harper?
Justin Trudeau has some style competition: