The sixth year anniversary special of KBS 2TV's 'Yoo Hee Yeol's Sketchbook' took place on May 8 with some of the most veteran, legendary, talented singers of Korea, including Yang Hee Eun, Jun In Kwon, and Lee Moon Sae.

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The last one prepared collaboration stages for this special day with CNBLUE's Yonghwa, who looked honored and happy the whole time, clearly having a hard time. �The two performed "Movie Dating," "Girl," and "Spring Breeze," with Yonghwa saying "Girl" was his favorite.

Check out the performances!