On the new episode of SBS's 'Laws of the Jungle,' Seolhyun revealed that she had felt very frustrated around the time of AOA's debut.

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She revealed, "I ran forward, only seeing the debut as the goal, but that turned out not to be the end of it.  That's why I was frustrated when I first debuted.  The month of AOA's debut was also the time when forty idol groups came flooding forth," suggesting that AOA may have advanced to 'trending idols' now but they had a very hard time with the fierce idol competition as soon as they debuted.

Seolhyun added, "Originally, singers are on music shows every week, but we were only on about once every three weeks," and admitted that she had envied other groups that had succeeded first.