Note: Joon-hyung’s (박준형) Final Performance as Billy was in Seoul on February 27, 2011
Debut: January 1, 2011 (Seoul)
Total Performances as Billy: 18.5 (includes 1 partial show credited @.5)
Eleven-year-old Joon-hyung Park became the fifth Billy in South Korea when he made his debut at the LG Arts Center in Seoul on Saturday, January 1, 2011.

Along with the other four Billys, he was on the cover of the August issue of the magazine The Musical. Asked in the interview what it feels like when dancing, he said, “I feel like floating on the clouds, flying the sky like birds or butterflies, I feel good when I’m dancing.”
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