The 31-year-old “Firework” singer and her 38-year-old boyfriend were celebrating the birthday of jewelry designer and club owner Markus Molinari, one of Katy’s best friends.
In the video, Katy and a shirtless Orlando lounge poolside as they sing to Markus with a group of friends.
“When you’re bassst Fran gives you the best birthday ever #blessed,” Markus captioned the Instagram video. “@katyperry you are my legs!”
Watch the video below!