Honey - real name Anna Georgette Gilford - took off her trademark cap and glasses while filming Alan Carr's Happy Hour, which aired Friday night at 8PM on Channel 4.
In the scenes that were broadcast on Friday evening, Honey and Alan were seen swapping their outfits as she takes his glasses and he dons her shades.
On the show, Honey G spoke of her "mad" time on the show: "It's just been a completely life changing experience for me, I've had the time of my life on X Factor.
"It's changed my life forever, it's been amazing."
Meanwhile, fellow guest Rebel Wilson rapped after she also put on Honey G's glasses.
Honey G's TV appearance follows her exit from the X Factor house in the week, where she penned a letter to the remaining finalists.
The singer bowed out of this year's series at the Quarter Finals, leaving Emily Middlemas, 5 After Midnight, Saara Aalto and Matt Terry in the competition.
And on Tuesday, Emily shared a picture of a letter Honey G had written to the group before she left the X Factor house.
Emily snapped a picture of the message, which Honey G had apparently attached to the fridge before leaving the North London mansion that the acts have been sharing while in the live shows.
"Dear Emily, Matt, Sara and 5AM, I just wanted to say what a pleasure it has been working/living with you all!" Honey G writes. "You are all winners in my eyes, and incredibly unique in your own way. I am sure you will all go very far & I truly hope you all get what you wish for!
"Best of luck to you all! See you at the final!
"Love Honey G xxx"
Emily captioned the message in her post on Twitter: "This made me smile this morning! Thank you @The_Honey_G you will be missed girl!"
The X Factor continues this Saturday and Sunday night on ITV with the live semi-finals