Roy Kim appeared on the October 21 installment of MBC's 'Radio Star' and revealed a time he had been taken aback by how much Moon Geun Young could drink! �Hey, she might be cute and petite and all, but she's got fire.

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He revealed, "It was at a funeral hall. �I drank one to two glasses with Moon Geun Young, then I had to leave early because of a schedule the next day, but she said, 'Go after one more drink,' so we kept drinking. �The two of us drank about six to seven bottles. �We didn't even make a clinking sound."

He revealed his own drinking limit, stating, "My tolerance is up to about three bottles," hinting that the other three to four bottles were drunk by Moon Geun Young.