The pair gushed over each other on social media.
The stars huddled close for a selfie video as Perry gushed over "Wednesday wellness" at a launch event for Kerr's new KORA Organics product. "Wellness Wednesday," Kerr celebrated, as Perry sprayed the hydration mist over herself and the model.
The pair also enjoyed a yoga class at the event, and Perry got a sweet shout out from Kerr as she addressed her guests.
"Spent me #wellnesswednesday with my gal @mirandakerr and @koraorganics for the very fresh & soothing #mintymineralhydrationmist launch!" Perry captioned her post on Instagram. "First time I did yoga since being preggers... let’s just say I enjoyed shavasana okkkk 😱🙃 #amianinfluencernowornah."
"Love you @katyperry," Kerr wrote on her Instagram Story, reposting Perry's video.
Perry is a big fan of Kerr's skincare brand, and recently joined the supermodel for an Instagram Live. Though their chat started as a promotion for the line, their conversation quickly turned to their modern family and motherhood.
"The kids are my No. 1 love," marveled Kerr, who shares a 10-year-old son, Flynn, with Bloom, and two sons -- Hart, 3, and Myles, 1 -- with her husband, Snap Inc. CEO Evan Spiegel. "It’s just the best thing in the world, being a mom."
"It's the best job, and the most fulfilling," agreed Perry, who welcomed her daughter, Daisy Dove, with Bloom in August. "I feel like I got the opportunity to climb every single mountain, especially career-wise, and see those views, and a lot of them I'm really grateful for. But there was no feeling like the feeling of when I had my daughter."
"That was like all the love I was every searching for," Perry recalled, adding that welcoming a child gave her a sensation of "wholeness."
"It's the heart-opener of all heart-openers," Kerr agreed.
See more in the video below.