Hyorin�and�Jessi�appeared on this week's episode of 'Yoo Hee Yeol's Sketchbook' where they talked about their close friendship and also performed together.

SEE ALSO: Jessi and Hyorin confirmed to have filmed for a collab stage on 'Yoo Hee Yeol's Sketchbook'

On the show, Yoo Hee Yeol asked Jessi who she talks to the most when something is on her mind in which she pointed to Hyorin. Yoo Hee Yeol said, "It's really good to see her again because it's been awhile. As most people already know, SISTAR disbanded recently and Hyorin went solo. How have you been?" Hyorin replied, "Because I've been working non-stop for the past few years, I've been resting a bit and now concentrating more on my music."

Yoo Hee Yeol also mentioned that Hyorin is well-known in the industry for her loyalty in which Jessi added further onto the comment by saying, "I've wanted to say this for awhile now but Hyorin is really loyal and I'm not just saying this for the sake of saying it. She takes care of people around her and is such a sweetheart. I don't lie about things like this. She does seem like a guy at times and talks more than me but in conclusion, she's really�nice and sweet." Then she joked while tapping on Hyorin's shoulder, "Hey come on, compliment me now," which caused the audience to laugh.�

After the interview, the two artists took the time to collaborate and perform�Rihanna's "Diamonds" for the crowd. Through their performance, they were able to display their synergy to everyone watching.

Were you impressed by their collaboration this week? If you haven't had a chance, check out the clips below!