Alongside a collection of throwback photos of the pair posted to Instagram Thursday, Campbell, 51, wrote a lengthy caption sharing some of the highlights of their friendship, "from flying in helicopters in Brazil and landing in a football field in a storm, to running around Moscow buying Russian dolls and typical Russian hats, to dancing around in my hotel room in Paris."
Addressing the fashion icon, Campbell began the post, "Words cannot describe what it feels like knowing you are no longer with us in the physical form, like everyone who loves you my heart skipped a beat.
"When I heard I reached out to @dvf [Diane von Fürstenberg] who let me know you went peacefully without pain."
The supermodel also shared a memory from her last trip with Talley in 2019, when the pair traveled to Nigeria.
"Everyone said you would cancel on me last minute and I refused to believe .. and there you came to Lagos with a wheelchair and all, and you embraced everyone and everyone embraced you," she wrote. "You were animated, fun and seeing all the young Nigerian creatives sitting at your feet taking notes with admiration, to going to church on Easter Sunday in Lagos of which you said coming to Africa was like an epiphany for you .. Seeing you so happy and in your zone is how I choose to remember you."
"Your unconditional love and support has never wavered, from encouraging me to pick up the phone and calling Anna Wintour and asking for my first American vogue cover September issue..." she added, "to just sitting in bed ordering room service watching tv, you were Andre a ray of light filled with laughter and positivity that played a huge impact of our ever lasting family ship."
"Andre is on his way to the otherside and will drape you all in divine larger than life luxury. I love you always," Campbell concluded. "REST EASY KING."
Fürstenberg, 75, wrote on Instagram, "Good bye darling André ❤️🙏… No one saw the world in a more glamorous way than you did ❤️🙏… no one was grander and more soulful than you were ❤️🙏…the world will be less joyfulI ❤️🙏 I have loved you and laughed with you for 45 years…. I miss your loud screams …I love you soooo much ❤️🙏."
RELATED VIDEO: Fashion Icon and Former Vogue Creative Director André Leon Talley Dead at 73
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"You championed me and you have been my friend since my beginning. Our chats, the moments we shared….oh my friend. You and your passions were larger than life," he added. "I love you and I will miss you dear Andre. Rest In Peace."
Tyra Banks, who worked alongside Talley as a judge on America's Next Top Model, also honored the famed writer. "I had never experienced such a prolific person serving up a rare mix of fashion 'fabulousness' and real down-home southern comfort love until I met @andreltalley," she said.
"Being in his presence was so magical. He made me smile, laugh and was a masterful teacher - a generous, genius historian," Banks continued. "Scholar, colleague, effervescent spirit, legend…you are resting now, Dearest André. But your spirit, your 'je ne sais quoi', your VOICE - your laugh, your screams of effervescent, delightful joy…I hear it now. And will forever. We all will."