Justin Trudeau Dresses as 'Left-Shark' for Halloween in Homage to Girlfriend Katy Perry!

Justin Trudeau is getting into the Halloween spirit with the help of girlfriend Katy Perry!

On Friday (October 31), the 53-year-old former Prime Minister of Canada took to Instagram to show of his and 11-year-old son Hadrien‘s Halloween costumes.

Justin dressed up as “Left-Shark,” who went viral for their dance moves during the 41-year-old “Teenage Dream” singer’s 2015 Super Bowl Halftime Show!

Keep reading to find out more…“Ready for Halloween with Hadrien: he’s the surfer, I’m the shark (to his left),” Justin wrote. “We built the costume together — a little father-son Halloween teamwork. ????????????‍♂️”

Katy and Justin have been romantically linked since July and they just went Instagram official earlier this week.

During her concert in Prague on October 29, Katy referenced her relationship with Justin!