Seventeen's Seungkwan and A Pink's Eunji sang an amazing ballad duet for Mnet's 'Karaoke on Fire'!

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The Seventeen vocalist seemed excited and eager to sing with his sunbae, and she made sure to calm him down by giving him compliments. Eunji chose 4men's "Live in the Memories" for their karaoke duet, and Seungkwan worried about reaching the high notes but added, "I will try hard." 

Despite Seungkwan's worries, the two had no problem covering the song. 

Check out their beautiful duet above!