Diplo trolled his ex-girlfriend Katy Perry by posting a selfie with Justin Trudeau amid the singer and politician's new romance.

Katy Perry and Justin Trudeau’s new romance is continuing to heat up as both the pop star and the former Canadian prime ...

Katy Perry is reportedly 'smitten' with former Canadian Prime Minister Justin Trudeau, but friends fear she's moving too fast with a man still reeling from divorce and a political exit.

Katy Perry has been winning hearts with her photos from Prague. The pop icon recently conducted her show for the Lifetimes ...

Ariana Greenblatt attends a gala in L.A., plus Katy Perry, Chris Martin, Paris Hilton and more. From L.A. to Bologna, Italy ...

Katy Perry and Justin Trudeau's romance heats up with Halloween hints as the pop star confirms she's dating someone and the ...

Now it seems the summer romance rumors are extending into fall. Here’s a complete timeline of Katy Perry and Justin Trudeau’s ...

Katy Perry told a Prague crowd she is dating somebody else amid reports she is exploring a romance with Justin Trudeau and ...

Katy Perry proudly declares she's dating someone during her latest concert, seemingly confirming her romance with Justin Trudeau.

Are Katy Perry and Justin Trudeau headed down the aisle anytime soon? Here's what to know about the odds of an engagement.

Justin Trudeau paid subtle homage to Katy Perry amid the pair’s growing romance with his Halloween costume — an inflatable ...

Justin Trudeau paid subtle homage to Katy Perry amid the pair’s growing romance with his Halloween costume—an inflatable shark.