John Stamos previously attempted the challenge with hilarious results ...

In a post on Instagram, Perry shared a plea to her fans.

Katy Perry and Justin Trudeau are putting on a united front. Perry, 41, was photographed holding hands with a smiling Trudeau, 54, at the World Economic Forum in Davos, Switzerland, on Tuesday, ...

Since last summer, Justin Trudeau has shown he’s at ease in Katy Perry’s pop-star milieu, from dancing at her concert in July ...

The pop star is experimenting in political plus-one fashion, joining her boyfriend, the former Canadian prime minister Justin Trudeau, at the World Economic Forum in Davos, Switzerland.

On Sunday, photos appeared online that seemed to show former prime minister Justin Trudeau and his partner Katy Perry on the ...

A popular Instagram account's followers questioned why they posted a video highlighting Perry and Trudeau's relationship.

Katy Perry shared photos from her holidays, including ones with Orlando Bloom and Justin Trudeau. A source says Katy and Orlando will always be a family, and "put their daughter first." Katy and ...

Katy Perry brought her relationship with Canada's former prime minister to the forefront in a new social media post. The 41-year-old "California Girls" singer gave fans a glimpse into her holiday ...

The “Teenage Dream” singer gave fans a glimpse into her holiday celebrations, which included quality time with Justin Trudeau as well as ex-fiancé Orlando Bloom and their 4-year-old daughter Daisy ...