You Hee-yeol's Sketchbook 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.

Udangtangtang Antenna is a massive project for Antenna, a management agency led by Yoo Hee-yeol, one of the musicians who wrote Korean Pop music history. He and his fellow artists, who are somewhat novices to the variety and entertainment shows, will show their genuine charms that many haven't recognized.