Kyuhyun revealed that he'd received 'water torture' from his musical sunbae Yoo Joon Sang!

On the April 3rd episode of 'Radio Star', Yoo Joon Sang was a guest on the show, and Kyuhyun talked about the time worked together on the musical 'The Three Musketeers'. Kyuhyun confessed, "Usually, you're supposed to arrive at the theater 3 hours before a performance. On one particular day, I was 10 minutes late, and Yoo Joon Sang sunbae told me to receive punishment. He already had water prepared in the sink. He grabbed my head and dunked my head in and out of the water."

The studio laughed incredulously at the 'water torture', but Kyuhyun only laughed it off and added, "I guess he felt bad afterwards, because he said, 'It's your fault' (Conducting the punishment without any valid reason)."

Yoo Joon Sang was flustered at the sudden revelation and said, "I need to explain myself..". He added on that Kyuhyun was usually a diligent, hard working hoobae that he enjoyed acting with. Previously, he'd joked about his 'punishment' to his idol musical hoobaes as well.