ASKKPOP,DRAMASTYLE Yuhuiyeol's SketchBook (March 11, 2016) You Hee-yeol's Sketchbook (유희열의 스케치북) is a Korean pop music program that is both a talk show and live music show. The host of this program is You Hee-yeol, also known as Toy, a one-man project band. This program has aired since April 24, 2009. Yoo Hee Yeol’s Sketchbook” Offers Opportunity for Possible Taeyang-Ailee Duet Stage. On the October 10 broadcast of KBS’ “Yoo Hee Yeol’s Sketchbook,” solo singer Ailee appeared as a g..