Group Girls' Generation's Hyoyeon revealed that she had a hard time dancing in a dress after joining Girls' Generation.

In Mnet "Beatles Code 2" airing tomorrow, Hyoyeon said, "The dance moves that I learned before debut were big and powerful movements but after debut, we had to wear stage outfits and dance."

She continued, "Also, since 9 members had to fit well into each other, more than trying to stand out, we had to put in much efforts to become one team together."

She said, "6~7 years ago, I went as a guest for a Poppin festival and even went to the semifinals at a dance competition."

Photo Credit: Mnet