Perry’s partner Orlando Bloom shared the clip of Borat wishing his singer fiancé many happy returns.
He wrote under the video, posted on Instagram: “@katyperry your dream come true birthday message my love HAPPY BIRTHDAY."
Perry was evidently delighted with the message and wrote under the video on her Instagram page: “Omg @orlandobloom”
Typically, the video soon turns silly when Borat joked about Bloom’s nude paddle boarding photos.
He also sparked speculation that the celebrity couple - who have been engaged since Valentine’s Day 2019 - had secretly tied the knot by referring to Bloom, 43, as Perry’s “husband.”
In the video, the 49-year-old comedian say after a few seconds of awkward smiling and silence: “Jagshemash, Katy Pepsi. I was planning on going sailing in Florida, and so I make Internet searching of ‘Orlando water sports.’
“But instead, Mr. Google send me a photograph of your husband with his crumb out. He have a very good one! It must be nice to see Orlando bloom. You will have a very nice birthday, a lot of cream on your cake. Why not?”
He was referring to the full-frontal snaps of Bloom that surfaced back in 2016, showing him paddle-boarding with Perry in Italy.
Meanwhile, Bloom also posted a sweet birthday tribute to the mother of his daughter, Daisy Dove, on Instagram, writing: “Happy Birthday my love. oh the places we’ll go..."
He shared a series of pictures of Perry including one of the couple posing in front of the pyramids in Egypt.
The couple have been together since 2016. They split in 2017 before getting back together. Bloom proposed on Valentine’s Day in 2019.
Perry welcomed their first child Daisy Dove back in August.
Bloom has a son, Flynn, nine, with ex-wife Miranda Kerr.
Nicki Minaj and Kris Jenner were among the other famous faces wishing Perry Happy Birthday.
“Happy birthday mama,” Minaj wrote.
“Happy Birthday @katyperry” Jenner added.