The Yellow Balloon was an American sunshine pop band, produced by Gary Zekley, from Jan and Dean fame. The group is notable for featuring Don Grady (sometimes billed as Luke R. Yoo or just Luke Yoo) of My Three Sons fame. It was produced by sunshine pop cult hero Gary Zekley (sometimes billed as Yodar Critch). Zekley is also known for his work with The Clique and The Fun and Games). Other band members hailed from Oregon and Arizona. They were led by lead singer Alex Valdez