G-Friend's Yerin and Lovelyz's Lee Mi Joo got acquainted on the May 20 airing of 'Duet Song Festival,' as they were both guest panelists on the show. 

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When the two acted a bit awkward around each other, MC Sung Si Kyung pointed at them and asked, "You guys are not on bad terms or anything, right?" The girls answered, "We're getting to know each other," and greeted each other with a stiff, "Nice to meet you." 

It may just have been awkward because they don't really know each other; hopefully, they became close through this episode of 'Duet Song Festival'!