Stephen, who starred on the Ellen Show, died from apparent suicide on Tuesday morning, it has been reported.
67-year-old Kris was left devastated after hearing the tragic news and took to Instagram to pay her respects to her dear friend.
Sharing a sweet picture of the DJ, Kris expressed her sorrow in the caption.
"My heart is heavy today. tWitch brought so much laughter and joy to so many people and I am so grateful and blessed to have had the time with him on the Ellen Show that I did.
"He was always so kind and amazing. Truly a special soul.
"I am heartbroken, and my heart goes out to his beautiful wife, Alison, and their children Weslie, Maddox and Zaia. I am praying for you all and sending my love," Kris wrote.
Her followers offered their condolences, with one person writing: "Heart broken. To whoever is reading this, the world is so much better with you in it. I love you."
Another added: "So sad May he rest in peace and sending blessings and prayers to his family."
"Absolutely gutted the poor family," a third person commented.
Stephen's colleague and dear friend Ellen DeGeneres also paid tribute to him on social media.
She posted a photo of herself and tWitch hugging on her Instagram page and wrote: " I'm heartbroken. tWitch was pure love and light. He was my family, and I loved him with all my heart. I will miss him.
"Please send your love and support to Allison and his beautiful children - Weslie, Maddox, and Zaia."
Ellen later vowed to "remember all the love" Stephen brought as she shared a video of her favourite moments with the star.
Sharing the throwback clip on Twitter, the talk show host wrote: "Right now what I want to do is remember all the love and laughter I had with tWitch.
"He brought so much joy to my life. I know he brought joy to yours too. I’m going to be sharing some of my favorite moments with him."
She encouraged fans to also post their memories and added: "#ILovetWitch."
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