Super Junior had to endure a relentless barrage of questions from the ever curious MCs on the October 8 edition of 'Radio Star' when they made guest appearances.

At one point, leader Leeteuk was bombarded with questions about the SM couples and whether he knew about them before it was public knowledge.  When Kim Gu Ra asked whether Sulli got advice from him (as she was revealed to be dating Choiza), Leeteuk said, "I had no hand in that area," explaining he was in the army at the time.

When asked whether he knew about YoonA and Sooyoung's respective relationships beforehand, Leeteuk was unable to respond and just kept laughing, suggesting he had known.  Then he admitted he knew about YoonA and Lee Seung Gi's relationship. Leeteuk finally stated that he felt uncomfortable talking about it because it was not his personal business.

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Kim Gu Ra fired back, "Then tell us about your business."  To a flustered Leeteuk, Kim Gu Ra then asked how he found out about YoonA's relationship.

Leeteuk responded, "Lee Seung Gi said he wanted to meet up."  He concluded with a suggestion that he may have played an affirmative role in the two celebrities' meeting up, but he couldn't say how they started dating.