Singer Katy Perry said she was "dating someone else" when a fan asked to marry her at her concert in Prague on Oct. 30.

Katy Perry is finding time to take in the sights while on her tour through Europe. In the midst of The Lifetimes Tour, the 41-year-old “Firework” singer shared photos and videos from her latest European escapades on Instagram on Friday.

According to TMZ, the “Dark Horse” singer and the still-married Trudeau made their romance official when they stepped out in Paris on Oct. 25. The new couple reportedly went to a cabaret show at the famed Crazy Horse Paris and were captured holding hands after.

Katy Perry is getting blasted online for destroying her 40th birthday cake, which her backup dancers ended up eating off the floor. The pop star celebrated the milestone backstage following a recent stop on her ongoing Lifetimes Tour.

The man quickly ducked to avoid the incoming cake, causing Ms Perry to miss her target. The cake crashed onto the floor, splattering across the ground as the singer burst into laughter. In the background, former Canadian Prime Minister and Ms Perry's new flame, Justin Trudeau, could be seen observing the scene.

Katy Perry has come under fire from fans after she destroyed a large cake meant for her 41st birthday celebration.

Katy Perry recently celebrated her birthday backstage during her ongoing Lifetimes Tour. However, instead of eating her birthday cake, she attempted to throw it at one of her crew members, and her behaviour hasn’t gone down well with many fans online.