On April 15th, JUNGLE Entertainment revealed to allkpop that Singer Jung In participated in a recent recording for KBS's "Yoo Hee Yeol's Sketchbook" alongside her long-time music friends, Leessang! On the show, Jung In and Leessang showed off their friendship of 10 years by referring to one another as their hometowns, someone they return to no matter what musical endeavor they pursue. Not only did Leessang produce and direct Jung In's second album, "Melody Remedy", but they even cast artists for guest features and her music video director as well. Jung In performed her debut track, "I Hate You", and Leessang's mega hit track, "Leessang Fuss", along with "Let's Meet Right Now". MC Yoo Hee Yeol had commented, "You guys look like siblings, it's truly remarkable. Jung In has the best vocals of Korea, one that a lot of composers are seeking." Check out their breathtaking performances below! ==