Girls' Generation's Hyoyeon had the entire studio roaring in laughter with some of her word mix-ups in the past.

The members of Girls' Generation were guests on 'Strong Heart's latest episode, and Jun Hyun Moo, one of the other guests on the show, revealed that Hyoyeon had called him Im Chae Moo before.

Hearing this, the other Girls' Generation members had even more to reveal about Hyoyeon. Tiffany said, "Hyoyeon makes a lot of mistakes when she talks. One time we were listening to Brian McKnight, but she said, 'Oh Brian McMorning is so good.'" The studio burst into laughter and Hyoyeon explained, "I was trying to say Brian McKnight before any of the other members could, but at the same time, I was watching the members eat McDonald's morning meal, so I said Brian McMorning."

When asked what she thought was her worst mix-up, Hyoyeon commented, "The worst time was when I said Whoopi Goldberg was Whoopi Golden Retriever," once again drawing laughs.

However, that wasn't all. Seohyun was quick to point out, "There's another one. During 'Oh!', Hyoyeon was supposed to sing, 'What should I do? The proud person..', and the second line she was supposed to say later on was 'What should I do? You naive person.." but instead she combined the two phrases in her head and ended up saying, 'What should I do? You person with no nose hair' during live broadcast," as the audience and guests roared with laughter.