Mike Myers flashes white hair at the White House — what does it mean?

Mike Myers has taken the Great White North to heart.

The Canadian actor, 52, showed up at the White House with white hair Thursday evening for a state dinner in honor of his home country's Prime Minister Justin Trudeau and First Lady Sophie Trudeau.

But why, Mike? Whyyyy?

"For fun," his rep told Gossip Cop exclusively. Not for a role. Not going natural. Not trying to pass as Steve Martin.

Other celebs at the state dinner — some of them even made the prime minister's Twitter feed — included Canadians Michael J. Fox, Sandra Oh, singer Tamia and Ryan Reynolds, with Tarzana-born wife Blake Lively. Michelle Obama favorite Sara Bareilles, born in Eureka, performed.

So now, with the mystery of Mike Myers' missing brown hair solved, here's a throwback trip to the "Great White North," courtesy of Rick Moranis and Dave Thomas of SCTV:

Follow Christie D'Zurilla on Twitter @theCDZ. Follow the Ministry of Gossip @LATcelebs.