Katy Perry seemingly confirmed her romance with Justin Trudeau during a concert this week

In a video shared on TikTok, Katy could be heard telling the crowd: "This guy is trying to get me to marry him and he has a ring in his hand.

"No! I am dating someone else for crying out f****** loud."

This isn't the first marriage proposal Katy has received on her Lifetimes tour.

During a show at The O2 Arena in London last month, audience member Darren Trenchard was invited onto the stage and took the opportunity to pop the question to the 41-year-old pop star - who has five-year-old daughter Daisy with ex-fiance Orlando Bloom and was previously married to Russell Brand - but she turned him down.

She laughed: "I wish you'd asked me 48 hours ago.

"London, England, you're like this on a Monday night after a whole day at work and a whole day at school?

"No wonder I fall for Englishmen all the time... but not anymore."

Last weekend, Katy and Justin made their first public appearance as a couple when they paid a visit to the Crazy Horse Paris to celebrate her 41st birthday at the cabaret show.

Pictures obtained by TMZ showed the couple walking out of the French venue holding hands and smiling at one another, with Katy wearing a vivid red dress and the 53-year-old politician in an all-black outfit.

The pair were first romantically linked over the summer, when they were spotted on a date in Montreal, Canada, shortly after the Dark Horse singer split from fiance Orlando Bloom in June.

They were next photographed together last month, kissing on a yacht off the coast of Santa Barbara.

Last month, it was reported the pair are "quite taken with each other".

A source explained to People magazine: "They have stayed in touch since the middle of summer but haven't been able to spend that much time together, due mainly to her schedule.

"Justin is also busy and both have family obligations. They have interests in common. Both are taking dating as it comes. But they are definitely into each other - and have been."

The insider noted the pair's romance has been allowed to develop slowly and "in addition to the attraction, they are both smart and love to talk about serious issues".

The source added: "Justin thinks she is terrific. It has had time to develop on a friend and intellectual level as well as supersized attraction. The romance has merit."