Kim, 32, appeared on today's (2 August) episode of Kris via video link with a recorded message for her mother, who watched it alongside guest P Diddy.
The new mum was dressed in a cream coloured top and wore her brunette hair in a centre parting, however the camera only filmed from her shoulders up - hiding her post baby body.
She told Kris: "Hey Mum, I just wanted to say congratulations on your new show. I'm sorry I couldn't be there in person but I'm just loving life a little bit too much at home right now.
"But I watch you every single day, you are so amazing, you really are born to do this. So I just want to say I love you and have an amazing show."
Following the video clip, Kris looked emotional and mumbled: "That got me!"
Earlier, Kim had teased fans by telling them that she would be making a "surprise" appearance on the daytime talk show.
She tweeted: "Getting ready to surprise my mum on @krisjennershow today!!!! You ready NYC? Tune in!"
Given that Kim gave birth to daughter North West on 15 June, she has been out of the spotlight for almost two months - and some followers could barely contain their excitement.
One wrote: "Yayy @KimKardashian has been in hiding for almost 2 months and she is finally coming out!!" Another said: "I'm not going to leave the house until I've seen @KimKardashian on #Kris."
Once she had appeared, a fan tweeted: "Oh my Lord Kim looked flawless #queen."
Kim's not the only star who has given birth this year, check out our gallery below!
Copyright: Love & Lust London